Leopard 2
The Leopard 2 is a main battle tank originally developed by Krauss-Maffei in the 1970s for the West German army. The tank first entered service in 1979 and succeeded the earlier Leopard 1 as the main battle tank of the German Army. It is armed with a 120 mm smoothbore cannon, and is powered by a V-12 twin-turbo diesel engine. Various versions have served in the armed forces of Germany and 13 other European countries, as well as several non-European nations, including Canada, Chile, Indonesia and Singapore. The Leopard 2 was used in Kosovo with  the German Army, and has seen action in Afghanistan with the Dutch, Danish and Canadian contributions to the International Security Assistance Force, as well as seeing action in Syria with the Turkish Armed Forces. There are two main development batches of the tank: the original models up to Leopard 2A4, which have vertically faced turret armour, and the improved batch, namely the Leopard 2A5 and newer versions, which have angled arrow-shaped turret appliqué armour together with other improvements. All models feature digital fire control systems with laser rangefinders, a fully stabilised main gun and coaxial machine gun, and advanced  night vision and sighting equipment (first vehicles used a low-light level TV system or LLLTV; thermal imaging was introduced later on). The tank has the ability to engage moving targets while moving over rough terrain. History. Development. Even as the Leopard 1 was just entering service, the German military was interested in producing an improved tank in the next decade. This resulted in the start of the MBT-70 development in cooperation with the United States beginning in 1963. However already in 1967 it became questionable whether the MBT-70 would enter service at any time in the foreseeable future. Therefore , the German government issued the order to research future upgrade options of the Leopard 1 to the German company Porsche in 1967. This study was named "vergoldeter Leopard" (Gilded Leopard) and focused on incorporating advanced technology into the Leopard design. The projected upgrades added an autoloader, a coaxial autocannon and an independent commander's periscope. The anti-air machine gun could be operated from inside the vehicle and a TV surveillance camera was mounted on an extendable mast. The shape of the turret and hull was optimised using cast steel armour, while the suspension, transmission and the engine exhaust vents  were improved. Prototype development. Following the end of the Gilded Leopard study in 1967, the West-German government decided to focus on the "Experimentalentwicklung" (experimental development) in a feasibility study and to develop new components for upgrading the Leopard 1 and for use on a future main battle tank programme. At first 25 million DM were invested, but after the industry came to the conclusion that with such a low budget the development of the two projected testbeds was not possible, a total of 30 to 32 million DM was invested. The experimental development was contracted to the company Krauss -Maffei, but with the obligation to cooperate with Porsche for the development of the chassis and with Wegmann for the development of the turret. Two prototypes with differing components were built with the aim to improve the conception of the Leopard 1 in such a way that it would match the firepower requirements of the MBT-70. A high first-hit probability at ranges of and the ability to accurately engage targets on the move using a computerised fire control system were the main goals of the experimental development. The resulting vehicles were nicknamed "Keiler" ("tusker"). Two prototypes (ET 01 and  ET 02) of the Keiler were built in 1969 and 1970, both of them being powered by the MB 872 engine. The MBT-70 was a revolutionary design, but after large cost overruns and technological problems, Germany withdrew from the project in 1969. After unsuccessful attempts of saving the MBT-70 by conceptual changes in order to eliminate the biggest issue—the driver being seated in the turret—it became clear in late 1969 that Germany would stop the bi-national development. The assistant secretary of the military procurement division of the German Ministry of Defence suggested reusing as much technologies developed  for the MBT-70 as possible in a further programme, which was nicknamed "Eber" ("boar") due to his being named Eberhardt. The "Eber" used a modified MBT-70 turret and hull, with the driver being seated in the hull. Only a wooden mock-up was made. One year later, a choice was made to continue the development based on the earlier "Keiler" project of the late 1960s, instead of finishing the development of the "Eber". In 1971, the name of the design was determined as "Leopard 2" with the original Leopard retroactively becoming the Leopard 1, and Paul-Werner Krapke became the  project officer of the Leopard 2 program. Originally two versions were projected: the gun-armed Leopard 2K and the Leopard 2FK, which would be armed with the XM150 gun/launcher weapon of the MBT-70. That year 17 prototypes were ordered, but only 16 hulls were built as the production of hull PT12 was cancelled. Ten were ordered initially before another seven were ordered. The 17 turrets were designated T1 to T17, and the hulls were designated PT1 to PT11 and PT13 to PT17. To test a larger number of components and concepts, each prototype was fitted with components not  found on the other prototypes. Ten of the turrets were equipped with 105 mm smoothbore guns, and the other seven prototypes were equipped with a 120 mm smoothbore gun. Hulls PT11 and PT17 were fitted with a hydropneumatic suspension based on the MBT-70 design. The running gears of these two hulls had only six road wheels. Different types of APUs were mounted in the prototypes. All turrets were equipped with a machine gun for air defence except the turret mounted on PT11, where a 20 mm remotely operated autocannon was mounted. With the exception of hulls PT07, PT09, PT15 and  PT17, all prototypes used the MB 873 engine. The road wheels were taken from the MBT-70 and the return rollers from the Leopard 1. The prototypes were designed with a projected weight of MLC50, which equals approximately . The welded turret utilised spaced armour formed by two steel plates. The prototypes were equipped with an EMES-12 optical rangefinder and fire control system, which later was adopted on the Leopard 1A4. In mid-1973 a new turret was designed by Wegmann saving weight. It was nicknamed the "Spitzmaus-Turm" (shrew turret) due to the highly sloped front. This design was only possible with  the new EMES-13 optical rangefinder, which required a base length of only instead of the previous . Based on experiences in the Yom Kippur War, a higher level of protection than the prototypes' heavily sloped spaced armour was demanded in late 1973 and the Spitzmaus-Turm was never produced. The weight limit was increased from MLC50 to MLC60, which equals approximately . The turret T14 was modified to test a new armour configuration, taking on a blockier-looking appearance as a result of using vertical modules of spaced multilayer armour. It was also used to test the new EMES-13 optical rangefinder. The  modified turret T14 was designated "T14 mod". and was fitted with a fully electric turret drive and stabilization system, which was developed together by the companies General Electric and AEG Telefunken. Leopard 2AV. In July 1973 German Federal Minister of Defence Georg Leber and his US counterpart James R. Schlesinger agreed upon a higher degree of standardization in main battle tanks being favourable to NATO. By integrating components already fully developed by German companies for the Leopard 2, the costs of the XM1 Abrams, U.S. prototype tank developed after the MBT-70, should be reduced. A German commission was sent to  the US to evaluate the harmonisation of components between the XM1 and Leopard 2. However, by American law it was not possible for a public bidder to interfere in a procurement tender after a contract with intention of profits and deadline was awarded to companies of the private industry. As a result, the modification of the Leopard 2 prototypes in order to meet the US Army requirements was investigated. Following a number of further talks, a memorandum of understanding (MOU) was signed on 11 December 1974 between the Federal Republic of Germany and the United States of America, which declared  that a modified version of the Leopard 2 should be trialled by the US against their XM1 prototypes, after the Americans had bought and investigated prototype PT07 in 1973. The MOU obligated the Federal Republic of Germany to send a complete prototype, a hull, a vehicle for ballistic tests and a number of special ballistic parts to the US, where they would be put through US testing procedures for no additional costs. The Leopard 2AV ("austere version") was based on the experiences of the previous Leopard 2 development. It was created in order to meet the US requirements and the  latest protection requirements of the German MoD. The turret T14 mod was used as base for the Leopard 2AV's turret, but meeting the required level of protection for the hull required several attempts until the final ballistic trials on 23 to 26 June 1976. Following the US' preference of laser rangefinders, the turret of prototype PT19 was fitted with a laser rangefinder developed together with the American company Hughes. In comparison with the earlier Leopard 2 prototypes, the fire control system was simplified by replacing the EMES-12 optical rangefinder and removing the crosswind sensor, the air-pressure and temperature  sensors, the powder temperature sensor, the PERI R12 commander sight with IR searchlight, the short-range grenade launcher for use against infantry, the retractable search-light, the spotlight, the retractable passive night vision sight, the APU and the mechanical loading assistant. Due to the design and production of the Leopard 2AV taking more time than expected, the shipment to the US and the US evaluation was delayed. It was not possible to test the Leopard 2AV before 1 September 1976. Despite the German wish that the Leopard 2AV and the XM1 prototypes would be evaluated at the same time, the  US Army decided not to wait for the Leopard 2AV and tested the XM1 prototypes from Chrysler and General Motors beforehand. Two new prototype hulls and three turrets were shipped to the US: PT20 mounting a 105 mm rifled L7 gun and a Hughes fire control system, PT19 with the same fire control system but able to swap out the gun for the 120 mm Rheinmetall smoothbore gun, and the PT21 fitted with the Krupp Atlas Elektronik EMES-13 fire control system and the 120 mm Rheinmetall gun. The Leopard 2AV fully met the US requirements. A study made by the  American FMC Corporation showed that it was possible to produce the Leopard 2AV under licence in America without exceeding the cost limits set by the US Army. But already before the trials were finished, it was decided that instead of the US Army possibly adopting the Leopard 2AV, the focus was shifted to the possibilities of common components between the two tanks. FMC, after having acquired the licenses for production of the Leopard 2AV, decided not to submit a technical proposal, as they saw little to no chance for the US Army adopting a vehicle not developed in the US . The US Army evaluation showed that on the XM1 a larger portion of the tank's surface was covered by special armour than on the Leopard 2AV. Differences in armour protection were attributed to the different perceptions on the expected threats and the haste in which the Leopard 2AV was designed to accommodate special armour. On mobility trials the Leopard 2AV performed equal to better than the XM1 prototypes. The AGT-1500 gas turbine proved to consume about 50% more fuel and the Diehl tracks had a higher endurance, while the tracks used on the XM1 prototypes failed to meet the  Army's requirements. The heat signature of the MTU diesel engine was much lower. The fire control system and the sights of the Leopard 2 were considered to be better and the 120 mm gun proved to be superior. The projected production costs for one XM1 tank were $728,000 in 1976, the costs for one Leopard 2AV were $56,000 higher. After the American evaluation of the Leopard 2AV and the US Army's decision to opt for the XM1 Abrams, both American and German sources blamed the other side. According to American literature, it was discovered that the  Leopard 2AV prototype used for mobility trials was underweight. In Germany, the test conditions were criticised for being unrealistic and favouring the XM1. Instead of using actual performance data, the calculated hypothetical acceleration was used. The XM1 was found to have a slightly higher rate of fire despite having internal layouts similar to the Leopard 2AV, because the XM1 prototypes were manned by professional crews, while the Leopard 2AV had to be manned by conscripts in order to prove that the Leopard 2AV was not too complicated. Firing on the move was demonstrated on flat tracks, which nullified the better  stabilization systems of the Leopard 2AV. Series production. The decision to put the Leopard 2 tank in production for the German army was made after a study was undertaken, which showed that adopting the Leopard 2 mod would result in a greater combat potential of the German army than producing more Leopard 1A4 tanks or developing an improved version of the Leopard 1A4 with 105/120 mm smoothbore gun, improved armour protection, a new fire control system and a or engine. Various changes were applied to the Leopard 2 design before the series production started. Engine, transmission and suspension were slightly  modified and improved. The ballistic protection of turret and hull was improved and weak spots were eliminated. The turret bustle containing the ready ammunition racks and the hydraulic systems was separated from the crew compartment and fitted with blow-out panels. The development of several new components introduced to the Leopard 2 during the Leopard 2AV development and after the US testing was completed. For the series version the Hughes-designed laser rangefinder made with US Common Modules was chosen over the passive EMES-13 rangefinder. The EMES-13 system was considered to be the superior solution, but the Hughes system was  cheaper and fully developed. The German company Krupp-Atlas-Elektronik acquired the licence of the Hughes design and modified it to meet the needs of the German army. The modified rangefinder received the designation EMES-15. The installation of the US Honeywell AGT1500 in the Leopard 2 was tested by MaK. The AGT-1500 was borrowed from the United States and required deep modifications of the Leopard 2's chassis. However, driving tests at the WTD 41 revealed a number of drawbacks such as high fuel consumption and the lacking performance of the transmission including the brakes. This project was thus terminated . In January 1977 Germany ordered a small pre-series of three hulls and two turrets which were delivered in 1978. These vehicles had increased armour protection on the front of the hull. One of the hulls was fitted with the earlier turret T21 and was used by the German army school in Munster for troop trials until 1979. In September 1977, 1,800 Leopard 2 tanks were ordered, to be produced in five batches. The main contractor was Krauss-Maffei, but Maschinenbau Kiel (MaK) was awarded a contract for producing 45% of the tanks. The first batch consisted of 380 tanks . The delivery of six tanks was scheduled for 1979, 114 for 1980, 180 for 1981 and 300 tanks each following year. The first series tank was delivered on 25 October 1979. By 1982 the first batch of 380 Leopard 2 tanks was completed. 209 were built by Krauss-Maffei (chassis no. 10001 to 10210) and 171 by MaK (chassis no. 20001 to 20172). The first production tanks were fitted with the PzB-200 image intensifier due to production shortages of the new thermal night-sight system, which was later retrofitted to the earlier models. After the original five batches, three further  batches of Leopard 2 tanks were ordered, increasing the amount of Leopard 2 tanks ordered by Germany to a total of 2,125. The sixth batch was ordered in June 1987 and consisted of 150 tanks, which were produced between January 1988 and May 1989. The seventh batch of 100 tanks was produced between May 1988 and April 1990. The last batch for the German army totalling 75 tanks was produced from January 1991 to March 1992. Further improvements. While previous models only varied in detail, the Leopard 2A4 introduced a digital ballistic computer and an improved fire extinguishing system. Starting  within the sixth batch tanks were fitted with an improved armour array and new side skirts. In 1984 the German military procurement agency stated a number of requirements for a future Leopard 2 upgrade. In 1989, the "Kampfwertsteigerung" (combat potential increasement) programme was initiated in Germany with the delivery of first prototypes. The official military requirements were published in March 1990. The KWS programme was projected to consist of three stages. The first stage of the KWS programme replaced the Rheinmetall 120 mm L/44 gun barrel and the corresponding gun mount with a longer barrelled and more lethal L/55 version . This stage was adopted in form of 225 Leopard 2A6 tanks starting in 2001 and a lasting to 2005. The KWS stage 2 focused on improvements of armour protection and survivability, it was adopted in form of the Leopard 2A5 starting in 1995. The base armour of the tank was exchanged and additional armour modules were installed at the turret. A first batch of 225 Leopard 2 tanks was upgraded to Leopard 2A5 configuration between 1995 and 1998, a second batch of 125 followed 1999 to 2002. In the third stage of KWS was the planned replacement of the Leopard  2 turret by a new turret fitted with a 140 mm NPzK tank gun, an autoloader and the IFIS battlefield management system. The ballistic protection at the hull was to be improved. Originally a total requirement for 650 Leopard 2 tanks with KWS 3 was projected. It was never finalised, but the 140 mm NPzK tank gun was tested on an older prototype. In 1995 it was decided to cancel due to changes in the political environment. The funds were redirected to the NGP project of the German army. The Leopard 2A6M was developed with an enhanced mine-protection  kit providing protection against mines that can detonate below the hull (like mines with bending wire trigger) and EFP mines. The weight of the Leopard 2A6M is 62.5 tonnes. The latest version of the tank is the Leopard 2A7, which entered service in a small initial batch of 20 tanks in 2014. Already before the first Leopard 2A7 tank was handed over to the German Army, plans for future upgrades were already made. At this time an ""extensive"" increase in combat value while retaining the original mobility of the Leopard 2 was planned. The optics of the tank also  will be improved. In April 2015, Welt am Sonntag claimed that tungsten (wolfram) rounds used in Leopard 2 cannot penetrate the Russian T-90, nor the modernized version of T-80. They also stated that the German military will develop a new improved round, but it will be exclusively developed for the Leopard 2A7. In 2015 Rheinmetall disclosed that it is developing a new 130 mm smoothbore gun for the Leopard 2 tank and its successor. This gun will offer a 50% increase in performance and penetration. Marketing for the new gun was slated to begin in 2016. Replacement. The Leopard  2 first entered service in 1979, and its service life is anticipated to end around 2030. In May 2015, the German Ministry of Defence announced plans to develop a tank jointly with France as a successor to both the Leopard 2 and Leclerc tanks. Technologies and concepts will be investigated to determine what capabilities are needed in a future tank. Deployment of the new tank, titled Main Ground Combat System (MGCS), will be preceded by incremental upgrades to the Leopard 2, including a new digital turret core system and situational awareness system and an Active Protection System (APS). A short -term lethality increase will come from a higher pressure 120 mm gun firing new ammunition, expected to deliver 20 percent better performance than the L/55. Mid-term efforts will focus on a Rheinmetall 130 mm cannon concept offering 50 percent better armour penetration. With the Russian T-14 Armata being equipped with the Afghanit, an Active Protection System designed to mitigate the effectiveness of ATGM, more importance is being placed on direct fire weapons. Exports. Germany has fielded about 2,125 Leopard 2 main battle tanks in various versions, but most of the tanks were sold following the German reunification. Other countries  bought newly or locally built tanks. The Netherlands ordered 445 Leopard 2 tanks on 2 March 1979, after examining the results of the Leopard 2AV in the United States. It became the first export customer of the Leopard 2 and the vehicles were delivered between July 1981 and July 1986. The Swiss army decided to purchase Leopard 2 tanks over the M1A1 Abrams after trialling both tanks between August 1981 and June 1982. The Swiss decision was made on 24 August 1983 and the funding was subsequently approved by the government in 1984. Thirty-five of the tanks were delivered  by Kraus-Maffei by June 1987; Eidgenössische Konstruktionswerkstätte Thun started license production of 345 additional vehicles in December 1987. The Leopard 2 became very popular in the 1990s, when the shrinking German army offered many of its redundant Leopard 2s at a reduced price. It became successful enough in Europe that the manufacturer started calling it the "Euro Leopard", despite France, Britain, and Italy all operating their own MBTs. But with further non-European orders, the name ""Global-Leopard"" is now used instead. After investigating the option of a locally developed replacement for the Strv 103 tank, Sweden decided to  buy a foreign tank model. The Leopard 2 Improved (Leopard 2A5 prototype) won the competition against the M1A2 Abrams and the French Leclerc; after intensive test from January 1994 to June 1994, the Swedish military opted for the Leopard 2. The Swedish military also evaluated the Soviet T-80U tank, but separately from the other tanks. The Swedish military found the Leopard 2 Improved to meet the military demands by 90%. The M1A2 only met the Swedish requirements by 86%, whereas the Leclerc met 63%. Sweden contracted on 20 June 1994 the production of 120 Stridsvagn 122 (Swedish Leopard 2A5 subvariant ) with many components being made locally. The first Stridsvagn 122 was delivered on 19 December 1996. Sweden also leased and later bought a total of 160 Leopard 2A4 tanks in 1994 and 1995; the first vehicle was delivered in February 1994. Denmark bought 51 ex-German Leopard 2A4 tanks after the Danish military school, the Haerens Kampskole, recommended to base the adoption of a new tank on the Swedish army trials. The tanks were delivered in 1997, but the upgrade to Leopard 2A5 level was already decided. In 2004 the Danish army bought another 18 ex-German Leopard 2 tanks . In 1998, Greece held a competition to determine the main battle tank for the Hellenic army. The Leopard 2 Improved managed to outperform the Challenger 2E, Leclerc, M1A2 Abrams, T-80U and, T-84 and was subsequently chosen by the Greek officials. In March 2003 Greece ordered 170 Leopard 2 tanks of which 140 were locally assembled. Greece also bought 183 Leopard 2A4 and 150 Leopard 1 tanks. Spain initially leased 109 Leopard 2A4 tanks, after Krauss-Maffei withdrew from the Lince development, a special lighter version of the Leopard 2 developed together with Santa Bárbara Sistemas. Before the end of the  Lince tank, Spain already had rejected the M1A1 Abrams and the Vickers Valiant tank. After deciding to purchase the leased tanks, Santa Bárbara Sistemas acquired the licence to locally produce 219 Leopard 2A6 tanks for the Spanish army. Poland received 128 Leopard 2A4 tanks from German army stocks in 2002. In 2013 Poland ordered a further 119 ex-German Leopard 2s. Finland bought 124 used Leopard 2A4 tanks and six armoured bridge-layer Leopard 2L tanks from Germany in 2002 and 2003. The tanks served as replacement for the old Soviet-made T-55 and T-72M1. The Netherlands resold 114 of  their tanks (and one turret) to Austria, 80 to Canada in 2007, another 52 tanks to Norway, 37 to Portugal and finally 100 to Finland. In 2005, Turkey ordered 298 Leopard 2 tanks from German army stocks. The Leopard 2 was already chosen in 2001 after successfully competing one year earlier in the Turkish army trials against the T-84 Yatagan, Leclerc and a version of the M1A2 Abrams fitted with a German MTU diesel engine. Turkey already wanted to buy 1,000 Leopard 2 tanks in 1999, but the German government rejected such deal. Singapore bought 96 Leopard 2 tanks from  Germany in 2006. Chile bought 172 ex-German Leopard 2A4 tanks and 273 Marder 1A3 IFVs in 2007. Indonesia ordered 103 Leopard 2 tanks and 42 Marder 1A3 IFVs in 2013. At first the export of heavy weapons to Indonesia was not allowed by the German government, due to the questionable human rights record of Indonesia. 61 of the 103 Leopard 2 tanks will be upgraded by Rheinmetall to the Leopard 2RI standard, based on Rheinmetall's "Revolution" modular upgrade concept. Qatar ordered 62 Leopard 2A7 tanks and 24 Panzerhaubitze 2000s in 2013 The delivery of the tanks started in  late 2015 and the first tanks were displayed on a military parade on 18 December 2015. Saudi Arabia has shown interest in buying the Leopard 2 since the 1980s. However, due to the political circumstances and the questionable situation of human rights in Saudi Arabia, no deal was made. Saudi Arabia renewed its intention of buying Leopard 2 tanks in 2011. While earlier news reports suggested an interest in buying about 200 tanks, later reports revealed an increased order of 600 to 800 tanks. The German government at first approved the deal, but canceled it later due to human rights  concerns and Saudi Arabia's military intervention in Bahrain. The Leopard 2 was also tested by the United Kingdom. In 1989 the Leopard 2 was evaluated as possible replacement for the Challenger 1 tank. Ultimately the British armed forces decided to adopt the locally made Challenger 2. The Australian Army evaluated ex-Swiss Army Leopard 2s as a replacement for its Leopard 1AS tanks in 2003, but selected the M1A1 AIM instead due to easier logistics. More modern versions of the Leopard 2 or M1 Abrams, such as the Leopard 2A6 were not considered due to their higher price. In  December 2018, Hungary placed an order for 44 Leopard 2A7+s and 12 second-hand 2A4s. The order coincided with the procurement of 24 Panzerhaubitze 2000, and is expected to replace Hungary's current fleet of T-72 tanks "no sooner than 2020". Combat history. KFOR. Starting on 12 June 1999, 28 Leopard 2A5 tanks were deployed by the German Army as part of the Kosovo Force (KFOR) to Kosovo. The vehicles of Panzerbataillon 33 and 214, were sent from Macedonia to Prizren. They were used for patrols, protecting checkpoints and bases as well as part of the show of force. On  13 June 1999, two members of the Serbian paramilitary started firing from inside a Fiat 125p car at one of the checkpoints in Prizren, and both were killed by return fire. A Leopard 2A5 was located at the checkpoint, but it could not participate in the fighting as it was only partially crewed. On 26 June 1999, a Leopard 2A5 fired four warning shots above the town of Orahovac. From late 2000 to early 2001, the tanks were replaced by the Leopard 2A4 model. Leopard 2A4s were deployed to Macedonia during 2001 as part of the NATO intervention. The tanks  served to protect Bundeswehr logistic sites in Macedonia. Until their return in 2004, the Leopard 2 tanks were stationed at the Austrian-Swiss camp "Casablanca". IFOR/SFOR. The Dutch contingent in Bosnia-Hercegovina operated Leopard 2 tanks. Dutch Leopard 2A4s and Leopard 2A5s at the NLD bases at Bugojno, Novi Travnik, Sisava, Knezevo, Maslovare and Suica. ISAF/OEF. In October 2003, Canada was planning to replace its Leopard C2s with wheeled Stryker Mobile Gun Systems. However, operational experience in Afghanistan, and in particular during Operation Medusa, convinced the Canadian military of the usefulness of maintaining a tank fleet. Leopard C2s  were deployed to Kandahar in December 2006, but they were by then almost 30 years old, and were nearing the end of their operational life. The Canadian government decided to borrow 20 Leopard 2A6s and three armoured recovery vehicles from Germany for rapid deployment to Afghanistan. In late August 2007, the first Leopard 2s were airlifted into Afghanistan to equip Lord Strathcona's Horse (Royal Canadians). In an assault on 2 November 2007, a Leopard 2A6M hit an IED and survived without casualties: "My crew stumbled upon an IED (improvised explosive device) and made history as the first (crew ) to test the (Leopard 2A6) M-packet. It worked as it should." wrote a Canadian officer in an email to German defence officials. Canadian Chief of the Defence Staff General Rick Hillier denied reports that a Leopard 2 tank that was struck by an IED was a write-off, insisting that the tank has been repaired and is once again in use. "The Taliban have been engaged with some of the new Leopard 2 tanks in several ambushes" and that as a result the Taliban "learned some very harsh lessons" and lost the battle in question "very quickly and very  violently." In October 2007, Denmark also deployed Leopard 2A5 DKs in support of operations in southern Afghanistan. The Danish tank unit, drawn from the first battalion of the "Jydske Dragonregiment" (Jutland Dragoons Regiment), was equipped with three tanks and one M113 armoured personnel carrier, with an armoured recovery vehicle and another tank kept in reserve. The Danish version of the Leopard 2A5 is fitted with Swedish-made Barracuda camouflage mats, that limit the absorption of solar heat, thus reducing infrared signature and interior temperature. It also has a conventional driver's seat bolted on the floor of the tank, whereas  in the Canadian 2A6M (as part of the mine-protection package) the driver's seat has been replaced by a "Dynamic Safety Seat", which is a parachute-harness like arrangement that the driver wears around his hip; in this way, the driver does not have any contact with the hull except on the pedals and is out of the shockwave area of exploding land mines or IEDs. In January 2008, Danish tanks halted a flanking manoeuvre by Taliban forces near the Helmand River by providing gunfire in support of Danish and British infantry from elevated positions. On 26 February  2008, a Danish Leopard 2 was hit by an explosive device, damaging one track. No one was injured and the tank returned to camp on its own for repairs. The first fatality suffered by a crew operating a Leopard 2 happened on 25 July 2008. A Danish Leopard 2A5 hit an IED in Helmand Province. The vehicle was able to continue before it halted. Three members of the four-man crew were able to escape even though wounded, but the driver was stuck inside. On site treatment by Danish medics could not save him. The vehicle was towed to FOB  Attal and then later to FOB Armadillo for investigation and possible redeployment. During the same contact with Taliban forces, a second tank was caught in an explosion but none of the crew were wounded. Beginning on 7 December 2008, Leopard 2 tanks took part in Operation Red Dagger, firing 31 rounds in support of Coalition troops as they recaptured Nad Ali District. A press release from the British Ministry of Defence praised the tank's fire accuracy and mobility, claiming the Leopard 2 was a decisive factor in the coalition's success. Turkish intervention in Syria. Turkey operates 354 Leopard  2A4 tanks. Initially using other tank types including upgraded M60s, in December 2016 Turkey deployed a number of Leopard 2A4s to the Syrian Civil War against Islamic State of Iraq and the Levant (ISIS) as part of Operation Euphrates Shield. Initially, three of the Turkish Leopard 2A4s operating in Syria were destroyed or damaged by ISIS using anti-tank missile systems (possibly Fagot or Konkurs anti-tank guided missiles obtained from Syrian or Iraqi Army captured stocks). In mid-December 2016, two 2A4 tanks were captured by ISIS near al-Bab city in Syria during Euphrates Shield operations; Amaq News  Agency posted video of vehicles claimed to be captured Leopard 2A4s. By late December 2016, Islamic State had captured or incapacitated 10 Leopard 2A4s. These were damaged by anti-tank weapons, IEDs, or other unknown causes. Additional ISIS propaganda images and video depicting several completely destroyed Leopards, some with their turrets blown off, were published in January 2017. Tanks which suffered the worst damage may have been destroyed by air strikes in order to prevent capture but sources generally state that the damage was caused solely with anti-tank missiles or car bombs driven by a suicide bomber (also known  as suicide vehicle borne improvised explosive devices or SVBIED). In January 2017, the German newspaper "Die Welt" reported that ISIL fighters used 9M133 Kornet anti-tank missiles to destroy six Leopard 2 tanks used by the Turkish military in Syria. At least eight Leopard 2 MBT have been destroyed according to photographic reports. Turkey also confirmed the use of Leopard 2A4 tanks during the Turkish military operation in Afrin to the German government. Design. Protection. The Leopard 2 uses spaced multilayer armour throughout the design. The armour consists of a combination of steel plates of different hardness, elastic materials and  other non-metallic materials. Steel plates with high hardness and high ductility are used. The armour is a result of extensive research about the formation and penetration mechanism of shaped charge jets. The Leopard 2's armour might be based on the British Burlington armour, which had already been demonstrated to the Federal Republic of Germany in 1970. Later, in the mid-1970s, full details about Burlington were handed over to the West German government. The frontal arc of the Leopard 2's armour is designed to withstand large caliber kinetic energy penetrators and shaped charge projectiles. During the 1980s, it  was estimated that the Leopard 2's front would resist 125 mm APFSDS rounds fired from a distance of 1,500 m. The Leopard 2A4's armour has a maximum physical thickness of based on unofficial measurements and estimates made by former conscripts and professional soldiers of the German army. On the Leopard 2A5 and subsequent models, the thickness is increased by the wedge-shaped armour module to . The side and the rear of the tank protect against heavy machine guns, medium caliber rounds and older types of tank ammunition. The side of the hull is covered by armour skirts to  increase protection against projectiles and RPGs. The frontal third of the hull sides is covered by heavy ballistic skirts, while the rest of the hull sides is covered by steel-reinforced rubber skirts. For increased protection against mines, the sides of the hull floor are sloped by 45° and the floor is reinforced with corrugations. Secondary protection. The Leopard 2's design follows the concept of compartmentation; possible sources of fire or explosions have been moved away from the crew. In the turret, the ammunition and the hydraulics are located in compartments separated from the crew. In case of  a detonation, the blow-off panels on the compartment roofs will direct the explosion and fire away from the crew. The crew is also protected against nuclear, biological and chemical (NBC) threats, as the Leopard 2 is equipped with a Dräger NBC overpressurization system, which provides up to over-pressure inside the vehicle. Two groups of four Wegmann 76 mm smoke mortars are mounted on either side of the turret and can be electrically fired either as single rounds or in salvos of four. They are mounted on most Leopard 2 models, with the exception of Dutch Leopard 2s, which  are equipped instead with a Dutch-designed smoke mortar system with six barrels on each side. Swedish Stridsvagn 122 utilise French GALIX smoke dispensers, similar to the system found on the French Leclerc. The Leopard 2 is equipped with a fire protection system. Four 9 kg Halon fire extinguisher bottles are installed on the right behind the driver's station. The bottles are connected to pipes and hoses and are activated automatically by the fire detection system, when temperatures rise above inside the fighting compartment, or manually via a control panel in the driver's compartment. An extra 2.5 kg  Halon fire extinguisher is stored on the floor beneath the main gun. Armour upgrades. Following the Leopard 2's introduction into service in 1979, the armour has been gradually improved over the years. A modified version of spaced multilayer armour was introduced beginning with the 97th vehicle of the 6th production batch. The same batch also introduced an improved type of heavy ballistic skirts. The Leopard 2A5 upgrade focused on increased armour protection. While upgrading a Leopard 2 tank to the Leopard 2A5 configuration, the roof covering the armour modules is cut open and new armour modules are inserted. New  additional armour modules made of laminated armour cover the frontal arc of the turret. They have a distinctive arrowhead shape and improve the protection against both kinetic penetrators and shaped charges. The side skirts also incorporate improved armour protection. Furthermore, a 25 mm-thick spall liner reduces the danger of crew injuries in case of armour penetration. The Leopard 2A7 features the latest generation of passive armour and belly armour providing protection against mines and IEDs. The Leopard 2A7 is fitted with adapters for mounting additional armour modules or protection systems against RPGs. For urban combat, the Leopard 2 can  be fitted with different packages of modular armour. The Leopard 2A4M CAN, Leopard 2 PSO (Peace Support Operations) and the Leopard 2A7 can mount thick modules of composite armour along the flanks of turret and hull, while slat armour can be adapted at the vehicle rear. The armour modules provide protection against the RPG-7, which depending on the warhead can penetrate between and of steel armour. The Leopard 2A6M CAN increases protection against rocket-propelled grenades (RPGs) by including additional slat armour. Additional armour packages have been developed by a number of different companies. IBD Deisenroth has developed  upgrades with MEXAS and AMAP composite armour, the latter is being used on Singaporean and Indonesian Leopard 2 tanks. RUAG has developed an armour upgrade utilizing their SidePRO-ATR composite armour. This upgrade was first presented on the IAV 2013. The Leopard 2A4M and 2A6M add an additional mine protection plate for the belly, which increases protection against mines and IEDs. On 22 February 2021, the German Defence Ministry agreed to acquire Trophy, an active protection system of Israeli design. 17 German Army tanks will be fitted with the system, with integration planned to be completed in 2023 . Armour protection estimates. Estimated levels of protection for the Leopard 2 range from 590–690 mm RHAe on the turret, 600 mm RHAe on the glacis and lower front hull on the Leopard 2A4, to 920–940 mm RHAe on the turret, 620 mm RHAe on the glacis and lower front hull on the Leopard 2A6 against kinetic projectiles. According to a description page hosted by the Federation of American Scientists, the armour of the Leopard 2A4 is believed to provide protection equivalent to 700 mm armour steel (RHA) against kinetic energy penetrators and 1000 mm RHA against shaped charge warheads. Armament . Primary. The primary armament for production versions of the Leopard 2 is the Rheinmetall 120 mm smoothbore gun—the same gun later adapted for use on the M1 Abrams—in either the L/44 variant (found on all production Leopard 2s until the A5), or the L/55 variant (as found on the Leopard 2A6 and subsequent models). Ammunition for the gun comprises 27 rounds stored in a special magazine in the forward section of the hull, to the left of the driver's station, with an additional 15 rounds stored in the left side of the turret bustle, which are separated  from the fighting compartment by an electrically operated door. If the ammunition storage area is hit, a blow-off panel in the turret roof would direct an explosion upwards away from the crew compartment. The gun is fully stabilised, and can fire a variety of types of rounds, such as the German DM43 APFSDS-T anti-tank round, which is said to be able to penetrate of steel armour at a range of , and the German DM12 High Explosive Anti-Tank (HEAT). For the L/55 gun, a newer APFSDS-T round was introduced to take advantage of the longer barrel , the DM-53, which is said to be able to penetrate 750 mm of RHAe armour at a range of 2,000 meters. The bore evacuator and the gun's thermal sleeve of the A4 and A5, designed to regulate the temperature of the barrel, are fabricated from glass-reinforced plastic. The barrel has a chrome lining to increase barrel life. The main gun is capable of power elevating from +20° to −9°. Rheinmetall has developed an upgrade for Leopard 2 tanks to give them the ability to fire the Israeli LAHAT anti-tank guided missile through the main gun ; the missile can engage targets out to a range of . Secondary. The Leopard 2 is equipped with two machine guns, one mounted co-axially, the other on an anti-aircraft mount. German models use the MG 3 7.62 mm machine gun; Dutch and Singapore models use FN MAG 7.62 mm machine guns; Swiss models use Swiss MG 87 7.5 mm machine guns. 4750 rounds of machine gun ammunition are carried on board the Leopard 2. More recent variants such as the Leopard 2A7+ are capable of mounting a Remotely-Controlled Weapons Station fitted with a Browning M2HB Heavy Machine  Gun, near to the commander's hatch. Fire control. The standard fire control system found on the Leopard 2 is the German EMES 15 fire control system with a dual magnification stabilised primary sight. The primary sight has an integrated neodymium yttrium aluminium garnet rangefinder and a 120 element Mercury cadmium telluride, HgCdTe (also known as CMT) Zeiss thermographic camera, both of which are linked to the tank's fire control computer. A backup 8x auxiliary telescope FERO-Z18 is mounted coaxially for the gunner. The commander has an independent periscope, the Rheinmetall/Zeiss PERI-R 17 A2. The PERI -R 17 A2 is a stabilised panoramic periscope sight designed for day/night observation and target identification; it provides an all round view with a traverse of 360°. The thermal image from the commander's periscope is displayed on a monitor inside the tank. Initial production tanks were not equipped with a thermal sight, due to the sight not being ready, and instead temporarily substituted the PZB 200 low light TV system (LLLTV). The fire control suite is capable of providing up to three range values in four seconds. The range data is transmitted to the fire control computer  and is used to calculate the firing solution. Also, because the laser rangefinder is integrated into the gunner's primary sight, the gunner is able to read the digital range measurement directly. The maximum range of the laser rangefinder is up to 10,000 m with a measuring accuracy within 10 m at this range. The combined system allows the Leopard 2 to engage moving targets at ranges of up to 5,000 meters whilst itself being on the move over rough terrain. Propulsion. The Leopard 2 is propelled by the MTU MB 873 Ka-501 engine, which provides at 2600 RPM and  of torque at 1600–1700 RPM. The MTU MB 873 Ka-501 is a four-stroke, 47.7 litre, 90° V-block 12-cylinder, twin-turbocharged and intercooled, liquid-cooled diesel engine (with multi-fuel capability), which has an estimated fuel consumption rate of around 300 litres per 100 km on roads and 500 litres per 100 km across country, and is coupled to the Renk HSWL 354 gear and brake system. The Renk HSWL 354 transmission has four forward and two reverse gears, with a torque converter and is completely automatic, with the driver selecting the range. The Leopard 2 has  four fuel tanks, which have a total capacity of approximately 1160 litres, giving a maximum road range of about 500 km. The propulsion pack is capable of driving the tank to a top road speed of 68 km/h (limited to 50 km/h during peacetime by law), and top reverse is 31 km/h. The power pack can be changed in the field in 35 minutes. The engine and transmission is separated from the crew compartment through a fireproof bulkhead. An enhanced version of the EuroPowerPack, with a MTU MT883 engine has also been trialled by the Leopard 2 . The Leopard 2 has a torsion bar suspension and has advanced friction dampers. The running gear consists of seven dual rubber-tyred road wheels and four return rollers per side, with the idler wheel at the front and drive sprocket at the rear. The tracks are Diehl 570F tracks, with rubber-bushed end connectors, which have removable rubber pads and use 82 links on each track. For use in icy ground, up to 18 rubber pads can be replaced by the same number of grousers, which are stored in the vehicle's bow when not in use. The upper part  of the tracks are covered with side skirts. The Leopard 2 can drive through water deep using a snorkel or without any preparation. It can climb vertical obstacles over one metre high. The German Army has prioritised mobility in its Leopard 2, which might be the fastest main battle tank in the world. Variants. Leopard 2. The baseline Leopard 2, sometimes informally called the "A0" to differentiate it from later versions, was the first series manufactured version. The vehicles were manufactured from October 1979 until March 1982, altogether 380 vehicles. 209 were built by Krauss Maffei and 171 by MaK.  The basic equipment consisted of electrical-hydraulic stabiliser WNA-H22, a fire control computer, a laser rangefinder, a wind sensor, a general-purpose telescope EMES 15, a panorama periscope PERI R17, the gunner's primary sight FERO Z18, on the turret roof as well as a computer-controlled tank testing set RPP 1–8. 200 of the vehicles had a low-light enhancer (PZB 200) instead of thermal imaging. Two chassis served as driver training vehicles. Leopard 2A1. Minor modifications and the installation of the gunner's thermal sight were worked into the second batch of 450 vehicles Leopard 2, designated  the A1. Krauss-Maffei built 248 (Chassis Nr. 10211 to 10458) and Mak built 202 (Chassis Nr. 20173 to 20347). Deliveries of the "2A1" models started in March 1982 and ended in November 1983. The two most notable changes were the modification of the ammunition racks to be identical to those in the M1A1 Abrams, and redesigned fuel filters that reduce refuelling time. A third batch of 300 Leopard 2, 165 by Krauss-Maffei (Chassis Nr. 10459 to 10623) and 135 by MaK (Chassis Nr. 20375 to 20509.), was built between November 1983 and November 1984. This batch included more  minor changes that were later retrofitted to the earlier 2A1s. Leopard 2A2. This designation was given to upgraded vehicles of the first batch of Leopard 2s, brought up to the standard of the second and third batches. This modernisation gradually replaced the original PZB 200 sights in the first batch with thermal sights for the EMES 15 as they became available. Furthermore, the upgrade included the fitting of filler openings and caps to the forward hull fuel tanks to allow separate refuelling, as well as the addition of a deflector plate for the periscope and a large coverplate to protect  the existing NBC protection system. Finally, the tank was given new five metre towing cables with a different position. The programme began in 1984 and ended in 1987; the third, fourth and fifth batches, which were produced during this period, had the same features. The modernised first batch can be recognised by the circular plate covering the hole where the cross-wind sensor for the fire-control system was removed. Leopard 2A3. The fourth batch of 300 vehicles, 165 by Krauss-Maffei (Chassis Nr. 10624 to 10788) and 135 by Mak (Chassis Nr. 20510 to 20644), was delivered between December  1984 and December 1985. The main change was the addition of the SEM80/90 digital radio sets (also being fitted to the Leopard 1 at the same time), and the ammunition reloading hatches being welded shut. Even with these minor changes the new batch was known as the "2A3". Leopard 2A4. The most widespread version of the Leopard 2 family, the 2A4 models included more substantial changes, including an automated fire and explosion suppression system, an all-digital fire control system able to handle new ammunition types, and an improved turret with flat titanium/tungsten armour. The Leopard 2s were manufactured  in eight batches between 1985 and 1992. All the older models were upgraded to 2A4 standard. Until 1994, Germany operated a total of 2,125 2A4s (695 newly built and the rest modified older versions), while the Netherlands had an additional 445 tanks. The 2A4 was also license manufactured in Switzerland as the Panzer 87 "Leopard" or Pz 87. This version included Swiss-built 7.5 mm MG 87 machine guns and communications equipment, and featured improved NBC protection system. Switzerland operated 380 Pz 87 tanks. After 2000, Germany and the Netherlands found themselves with large stocks of tanks that they had  no need for after the Cold War. These tanks were sold to NATO or friendly armies around the world. Among these buyers of the surplus tanks were Turkey (purchasing 354 vehicles), Greece (183), Sweden (160), Chile (140), Finland (139), Poland (128), Austria (114), Spain (108), Canada (107), Indonesia (103), Singapore (96), Norway (52), Denmark (51), and Portugal (37). The "Pz 87WE" ("WertErhaltung") is a planned Swiss modification and upgrade of the Pz 87. The modification significantly improves protection through the addition of the Leopard 2A6M's mine protection kit, thicker armour on the front glacis, and a turret equipped  with a Swiss-developed armour package using titanium alloy. The turret roof armour is improved and the smoke grenade launchers redesigned. Further improvements enhance survivability and combat capability, such as a turret electric drive similar to the Leopard 2A5, a driver rear-view camera, an independent weapons station for the loader, and enhanced command and control systems. The fire control system is also upgraded, using the Carl Zeiss Optronics GmbH PERI-R17A2 fire control system. A remote weapons station containing a fully stabilised Mg 64 0.50 in (12.7 mm) machine gun is also fitted to the tank. The "Leopard 2  Revolution" or "Leopard 2RI" is an upgraded variant from Rheinmetall for the Leopard 2A4 tank purchased by Indonesia. The upgrade includes AMAP armor from IBD Deisenroth and Rheinmetall Chempro, improved fire control systems, and battlefield management and situational awareness systems. The "Pz 87–140" is an experimental variant of the Swiss Pz 87 with a 140 mm gun and additional armour, which was later used on the newer production variants. The "Leopard 2A4CHL" is the upgraded Chilean version of the Leopard 2A4 ordered by Chile in 2007. Upgrades include new electronics, sighting and information systems meant to elevate the Leopard 2A4 's networking capability to be equal to that of the Leopard 2A6, a new suspension system and the upgrading of the tanks main gun to the L/55 smoothbore cannon used on the Leopard 2A6. Other upgrades are remote weapon stations over the gunner and commander hatches fitted with the MG3 and HK GMG. The Leopard 2A4CHL also has improved roof and side turret armour and can be uplinked with Chile's battlefield control network. The "Leopard 2A4M CAN" is the upgraded Canadian version of the Leopard 2A4 acquired from the Royal Netherlands Army surplus. The Leopard 2A4M CAN  is specially designed for the war in Afghanistan, based on experience gained by Leopard 2 operators. The first 20 were delivered in October 2010; of which just five were deployed to Afghanistan at the end of 2010 and operated until July 2011, when combat operations stopped. Though originally planned to be up-gunned to the L/55 for consistency with the 2A6M CAN, the longer barrelled guns (optimised for tank-vs-tank warfare) were found to be less than ideal in Afghanistan, therefore it was decided to retain the L/44. In addition, only small areas of slat armour were added , in contrast with the fully caged 2A6M CANs. The protection of the Leopard 2A4M CAN has been further augmented by the addition of applique armour resembling that found on the most recent Leopard 2A7+ variant, but modified to fit the turret configuration of the 2A4. Of the 2A4s acquired, 11 were converted for training use (9 A4s, 2 A4Ms). In February 2011, Canada bought 12 2A4s/Pz 87 from Switzerland for the 'Force Mobility Enhancement' project which, along with the remaining unused ex-Dutch tanks, saw 18 converted to Armoured Engineering Vehicles and 4 converted to Armoured  Recovery Vehicles. Canada has also purchased 15 2A4s from Germany as Logistic Stock Vehicles (for spare parts). The "Leopard 2NG" ("Next Generation") is a privately funded Turkish upgrade by ASELSAN that includes the application of modular composite armour (AMAP), upgraded optics, completely overhauled turret mechanics and a new fire control system on the work since 1995 and to be delivered by late 2011, which is intended to be used on the new Altay MBT. It was developed without an order of the Turkish Army, but might meet the requirements for the modernization of the Turkish Leopard 2A4s. The old powerpack  and the L/44 gun barrel are kept, but the combat weight is increased to 65 tonnes. According to Turkish news sources, Finland was interested in getting the Turkish upgrade package to modernise their fleet of Leopard 2A4s. However, in 2015 Finland purchased 120 2A6 vehicles from the Netherlands. The Leopard 2 hull was also used for the Vickers Mk 7 main battle tank, which featured a British-designed turret, where some of the innovations later were incorporated into the Challenger 2 design. In December 2015, Bumar-Łabędy signed an agreement with German Rheinmetall Landsysteme Gmbh concerning the technological support of  the Polish modernization program for Leopard 2A4 tanks. The company will design, document and execute six prototypes. The first upgraded Leopard 2PLs have arrived in Poland in June 2020, with all 142 tanks to be delivered by 2023. The upgrades include third generation night vision systems (production of the Warsaw PCO), new additional armor modules and anti-splash lining, removal of flammable components (turret drive system and main propulsion system), installation of new fire protection system, modernization of the tank's integrated monitoring and testing equipment, Possibility of using new types of ammunition (programmable DM-11 and DM-63), auxiliary generator set  (APU). Construction of all 142 units will be completed by the end of 2020. Turkey is planning to modernize its Leopard 2A4 MBTs with the T1 Modernization Package. According to the Defense Industry Presidency, Leopard 2A4 tanks will be modernized with; Explosive Reactive Armor (ERA), T1 Reactive-Passive Armor, High Ballistic Strength Cage Armor, Hollow Modular Add-on Armor, Close Range Surveillance System (YAMGÖZ), Laser Warning Receiver System (LIAS), SARP Remote Controlled Weapon System (UKSS), PULAT Active Protection System (AKS), a new power distribution unit, ASELSAN Driver Surveillance System (ADİS) and voice alert system integrations. The modernization programme is to  be completed in 2 batches. The programme will start with 84 Leopard 2A4 tanks in the first batch and the remaining tanks will be modernized within the 2nd batch. Total amount of 334 tanks (including prototypes) are planned to be upgraded with the T1 modernization programme. Leopard 2 Marksman. Finland has modernised its Marksman SPAAG vehicles by replacing the original T-55AM chassis with a newer Leopard 2A4 chassis. The upgraded Marksman vehicles were scheduled to enter service with the Finnish Army in 2016. The new Leopard 2 chassis greatly improves mobility compared to the older T-55AM chassis, both on- and  off-road. The Leopard 2 chassis is also larger, thus providing a more stable firing platform for the Marksman turret to operate from. Leopard 2 Imp. "Leopard 2 Improved" was a prototype-series for enhancing the A4, introducing a wedge-shaped, spaced add-on armour to the turret front and the frontal area of the sides. These spaced armour modules defeat a hollow charge prior to reaching the base armour, and causes kinetic-energy penetrators to change direction, eroding them in the process; it does not form a shot-trap, since it does not deflect the penetrators outwards to hit  the hull or turret ring. The gun mantlet was redesigned to accept the new armour. Leopard 2A5. The Leopard 2 Imp was then developed into the A5. There were also some improvements in the main armour composition. The interior received spall liners to reduce fragments if the armour is penetrated. The frontal "heavy" third of the side skirts was replaced with a stronger type. The commander's sight was moved to a new position behind the hatch and it received an independent thermal channel. The gunner's sight was moved to the turret roof as opposed to the cavity in  the front armour in previous models. A heavier sliding driver's hatch was fitted. Turret controls went all-electric, increasing reliability and crew safety, as well as weight savings. The gun braking system was improved to prepare for the later mounting of the new L/55 gun tube and to enable firing of more powerful ammunition, such as the DM53 APFSDS. The first A5s were handed over to the German army tank school in 1995 and started to enter regular service with Panzerbataillon 33 in December the same year. The Leopard 2A5 DK is a variant of the Leopard 2A5 similar  to the Leopard 2A6 with some small modifications, used by the Danish Army. Stridsvagn 122. Also based on the Leopard 2 Improved, Stridsvagn 122 is a Swedish Army tank with 120 units built, 91 of which were licence-produced in Sweden. The tank features increased armour on the turret top and front hull, and improved command-, control- and fire-control systems. Externally, it can be distinguished from the Leopard 2A5 by the French GALIX smoke dispensers, different storage bins, and the much thicker crew hatches. The Strv 122B, a variant equipped with modular AMAP composite armour from IBD Deisenroth, has  increased 360° protection against threats like EFPs, RPGs and IEDs. The width of has been kept, while the weight increases by only . Leopard 2-140. In the early 1990s, Rheinmetall began development of a 140 mm smoothbore cannon for use in future tank designs. The new gun was intended to counter new Soviet tank developments, especially since the next generation of Soviet main battle tanks were rumoured to be armed with a 135 mm or 152 mm cannon. The new 140 mm cannon was part of a modernisation programme for the Leopard 2 known as the KWS III. Test  firing of the new 140 mm cannon was conducted. Results showed that the gun had high penetration values, and had a muzzle velocity of around 2000 metres a second, with potential to be increased further. However, the 140 mm rounds were too heavy for the tank crew to handle effectively. The KWS III upgrade was to feature a new turret. This new turret was equipped with the planned 140 mm cannon and an autoloader. The introduction of an autoloader reduced the tank's crew to three members, as a dedicated loader was no longer needed. The gun's 32 rounds  of ammunition were stored separate from the crew in a large compartment occupying the entire rear of the turret, in order to increase crew survivability in the event of a cook off. The turntable-style turret had the gun offset to the left side, due to the autoloader's lateral feeding of ammunition into the cannon breech. The turret was powered by an electro-hydraulic drive and also featured an IFIS battlefield management system. The crew was protected by an armoured capsule and ballistic protection for the hull was to be improved; planned protection level of the KWS III upgrade  was to be equal to or better than the Leopard 2A5. A total of 650 Leopard 2 KWS III tanks were originally projected to be purchased. However, in 1995, the KWS III programme was cancelled due to Despite this, development still continued on the 140 mm cannon, with Rheinmetall coordinating with the British Royal Ordnance and French GIAT companies. The 140 mm cannon was fitted to an old Leopard 2 prototype with the turret T19. Counterweights were added to the rear of the turret to balance the increased weight of the 140 mm cannon; however, the modified Leopard 2 was  not equipped with any other KWS III upgrades apart from the new gun. Live fire testing showed mixed results, where the 140 mm cannon showed superior penetrating power compared to the existing 120 mm cannon, but also demonstrated poorer handling characteristics. The lack of the autoloader on the prototype further hampered performance. Leopard 2A6. The Leopard 2A6 includes the addition of the Rheinmetall 120 mm L/55 smoothbore gun and other changes. All German tank battalions of the "crisis intervention forces" are equipped with the A6. Canada purchased 20 Leopard 2A6s from the Netherlands. These were delivered in 2007. Portugal also  purchased 37 Leopard 2A6 from the Dutch in 2007, with delivery in 2008. In January 2014, Finland purchased 100 L2A6s, as well as munitions, simulators, and a ten-year supply of reserve parts from the Netherlands. The tanks were delivered in batches between 2015–2019. The Leopard 2A6M is a version of the 2A6 with enhanced mine protection under the chassis, and internal enhancements to improve crew survivability. In the summer of 2007, Canada borrowed 20 A6Ms from Germany for deployment to Afghanistan. The Leopard 2 Hel is a derivative of the 2A6 that was ordered by the Greek Army  in 2003 – the "Hel" stands for "Hellenic". The 170 tanks were to be delivered between 2006 and 2009. A total of 140 will be built in Greece by ELBO, which delivered the first units in late 2006. The Leopard 2A6M CAN is a Canadian variant of the Leopard 2A6M. Significant modifications include distinctive black boxes mounted on the rear of the turret bustle, and stand-off slat armour. The first tanks configured in this variant were 20 loaned from the German Bundeswehr in an effort to increase firepower and protection given to Canadian troops operating in the south of  Afghanistan. The loaned tanks retain their German MG3 machine guns, the ex-Dutch tanks are also expected to retain their FN MAG machine guns due to commonality with Canadian stocks of C6 GPMG, itself a variant of the FN MAG. Due to the loaned status of the first 20 tanks, the air conditioning unit originally could not be installed as only minimal changes could be made (the crew wore cooling vests instead, and the turret's electric drive generates less heat than the hydraulic drive of the older Leopard C2). The loaned German tanks will be kept by the Canadian  Forces and may be further upgraded, while ex-Dutch Leopard 2A6s were modified to German Leopard 2A6M specifications and used as restitution for the loaned tanks. Canadian Leopard 2s in Afghanistan were later fitted with air conditioning units (a much needed commodity in the scorching desert of Afghanistan) and Saab's Barracuda camouflage mats, which also serve to reduce solar loading by 50 percent. The Leopard 2A6TR was the Turkish variant during Turkish Army tank procurement project in 2000. The version was based on 2A6EX. The project was dropped in favor of developing indigenous Altay tank. Leopard 2E. The  Leopard 2E is a derivative of the 2A6, with greater armour protection, developed under a programme of co-production between the defence industries of Spain and Germany. The programme was developed within the frame of collaboration decided in 1995 between the Defence Ministries of both countries, in which also was included the cession of use by a period of five years of 108 Leopard 2A4 from the German Army to the Spanish Army. However, this cession was extended up to 2016, and after that those tanks will be the sole property of the Spanish Army, as has been made public  on 24 January 2006, then having been paid a total of 15,124,014 euros in ten yearly installments, giving the Spanish co-ownership from 2006. In 1998, the Spanish government agreed to contract 219 tanks of the Leopard 2E line, 16 recovery tanks Leopard 2ER (Bufalo) and 4 training vehicles. They chose Santa Bárbara Sistemas as the main contractor. The programme, with a budget of 1,939.4 million Euros, also includes the integrated logistical support, training courses for crew instructors and maintenance engineers and driving, turret, maintenance, aiming and shooting simulators. Deliveries of the first batch began in 2004. Leopard 2PL. The  Leopard 2PL is a Polish modernized version of the Leopard 2A4, carried out in cooperation with Rheinmetall and the Polish Armaments Group (pol. Polska Grupa Zbrojeniowa PGZ). The Leopard 2PL MBT is primarily tasked with assault, maintaining territory, and supporting mechanized and motorized subdivisions with its on-board weapon systems in all weather conditions during the day and night. The main upgrades when compared to the Leopard 2A4 include: modernization of the commander's and gunner's sight, additional ballistic modules on the turret, replacement of the hydraulic stabilization system to new electric system, installation of modernized Fire Extinguishing and  new Fire Suppression systems, installation of a new commander's control and monitoring system, installation of Auxiliary Power Unit (APU), new turret stowage compartment for crew equipment, modernization of its main gun to use new types of programmable ammunition, and the integration of day/night rear camera for drivers. Also included are customized towing vehicles due to the increased weight of the upgraded tank. The upgraded 2PL version is already in service with the Polish Land Forces. Of the Leopard 2A4s from the first (128) and the second (14) batches, 24 have been upgraded to Leopard 2PL standard. The rest  will be upgraded to the 2PLM1 standard. Leopard 2 PSO. The new Leopard 2 PSO (Peace Support Operations) variant is designed specially for urban warfare, which had been encountered in peacekeeping operations with increasing frequency. Therefore, the Leopard 2 PSO is equipped with more effective all-around protection, a secondary weapons station, improved reconnaissance ability, a bulldozer blade, a shorter gun barrel (for manoeuvring on urban streets at the expense of fire range), non-lethal armament, close-range surveillance ability (through camera systems), a searchlight and further changes to improve its perseverance and mobility in a built-up non-wide  open area. These features are similar to the Tank Urban Survival Kit for the American M1A2 Abrams. Leopard 2A7. The Leopard 2A7 is fundamentally different from the KMW variant 2A7+ and is not optimised for combat in urban terrain. A total of 20 vehicles are provided for converting. It involves former Dutch A6NL models returned by Canada to Germany. The original upgrade to A6M has been extended in coordination with Canada and includes a crew-compartment cooling-system from the Leopard 2 A6M-HEL series, a new 20 kW auxiliary power unit based on the Steyr Motors M12  TCA UI engine, the Saab Barracuda Mobile Camouflage System (MCS) with Heat-Transfer Reduction (HTR CoolCam) system, a field trial proven combat management and information system (IFIS: "Integriertes Führungs- und Informationssystem"), onboard network optimization with ultracapacitors in the chassis and turret, a SOTAS IP digital intercom system, a renewal of the fire suppression system in the crew compartment, and the retrofitting of Attica thermal imaging module in the commander optics. The weapon system is adapted for firing HE ammunition. It is also fitted for, but not with, additional passive side protection armour. The first Leopard 2A7 was handed over to  the German Army in Munich on 10 December 2014. A total of 14 vehicles were produced for Tank Battalion 203, plus four more going to the Armoured Corps Training Centre and one vehicle at the Technical School for Land Systems and School for Technology of the Army. The last tank remains as a reference vehicle at KMW. The tank also features a completely new armour package that features Tungsten, Titanium as well as Nano-Ceramics. The estimated armour protection for the hull is around ~620 mm RHAe KE and near ~1000 mm RHAe KE for the turret. The Danish Armed  Forces received its first Leopard 2A7 main battle tanks upgraded in Germany from the Leopard 2A5DK version at the Dragoon Barracks in Holstebro. The Danish Army will receive a total of 44 Leopard 2A7 vehicles by 2022. Siemon T. Wezeman, senior researcher at SIPRI’s arms transfers and military expenditure programme, stated that information from the UN Register of Conventional Arms 2016, indicated that some Leopard 2A7s were transferred to Singapore after 2014. SIPRI reported that the Singapore Army probably acquired a total of 45 Leopard 2A7s between 2016–2019, but the Singapore's Ministry of Defence denied having acquired the  2A7 version, presumably to minimise anxiety among her neighbors. Leopard 2A7+. The Leopard 2A7+ was first shown to the public during the Eurosatory 2010, featuring the label "Developed by KMW – tested and qualified by the German Ministry of Defence". The Leopard 2A7+ has been tested by the Bundeswehr under the name "UrbOp" (urban operations). The Leopard 2A7+ is designed to operate both in low intensity and high intensity conflicts. The tank's protection has been increased by modular armour; the frontal protection has been improved with a dual-kit on the turret and hull front, while  360° protection against RPGs and mine protection increase the survivability of the tank in urban operations. The modular armour's system components were first used by Canada in Afghanistan. It can fire programmable HE munitions and the turret mounted MG3 has been replaced with a stabilised FLW 200 remotely controlled weapon station. The mobility, sustainability and situational awareness have also been improved. In December 2018, Hungary ordered 44 2A7+s, making them the second operator of the improved version, after Qatar.