Trieste Mechanized Brigade The " Trieste " Mechanized Brigade was an mechanized brigade of the Italian Army . Its core units were mechanized Infantry battalions . The brigades headquarter was in the city of Bologna . History . Constitution . The " Trieste " brigades history began in August 1862 when the " Valtellina " Infantry Brigade was raised . The brigade consisted of the 65th Infantry Regiment " Valtellina " and the 66th Infantry Regiment " Valtellina " . The brigade along with the " Brescia " Brigade formed the 5th Division of the Line in the Third Italian War of Independence , where it fought in the Battle of Custoza . Personnel from the brigade was dispatched to fight in the Italian colonial wars in Eritrea in 1887 , Abyssinia in 1895 and Libya in 1911 . World War I . During World War I the brigade fought on the Italian Front as part of the 7th Division of the Line , which was part of the IV Army Corps . In spring 1915 the brigade moved to the Austrian border and saw its first combat during the First Battle of the Isonzo . By wars end the brigade had reached the city of Trento . World War II . In 1926 the Italian army decided to change the structure of its divisions : instead of two brigades with two infantry regiments each the new divisions would consist of one brigade with three infantry regiments . Therefore in the same year the " Valtellina " brigade was disbanded . The 65th regiment was transferred to VIII Infantry Brigade of the 8th Infantry Division " Po " , while the 66th regiment was transferred to XVI Infantry Brigade of the 16th Infantry Division " Fossalta " . On 6 May 1937 the two regiments were re - united in the 8th Infantry Division " Po " , which was subsequently equip as an motorised division . The division also consisted of the 21st Artillery Regiment and in 1938 it added the 9th Bersaglieri Regiment , making it one of the few Italian divisions with three infantry regiments instead of the standard two infantry regiments . On 4 April 1939 the units was renamed as 101st Motorised Division " Trieste " . At the outbreak of World War II the division was one of the few fully motorised divisions of the army . The division command and 21st Artillery Regiment were sent to Albania in fall 1940 to reinforce the Italian units in the Greco - Italian War . After German forces had conquered Greece in the Battle of Greece the division command and 21st Artillery Regiment returned to Italy . In August 1941 the division was sent to Libya were it formed with the 132 Armoured Division " Ariete " the Italian XX Motorised Corps . The " Trieste " immediately entered the frontline in the Siege of Tobruk . From Tobruk on the division participated in all Western Desert Campaign battles : Operation Crusader , Battle of Gazala , Battle of Bir Hakeim , First Battle of El Alamein . During the Second Battle of El Alamein the " Trieste " was virtually destroyed . After El Alamein the remnants of the division were reinforced with men and materiel from Italy an fought against the British Eighth Army in Tunisia until it surrendered to the Allies on 13 May 1943 . Cold War . On 1 June 1950 the division was raised again as " Trieste " Motorised Infantry Division in the city of Bologna . The division was the only major unit under the VI Military Territorial Command and consisted of the 40th Infantry Regiment " Bologna " , 82nd Infantry Regiment " Torino " and the 21st Artillery Regiment . In 1951 the division was augmented with the 6th Armoured Cavalry Squadron " " Lancieri di Aosta " " and the 121st Artillery Regiment . However on 20 October 1954 the division was split in two formations : the " Trieste " Group with the 82nd Infantry Regiment " Torino " and one artillery group of the 21st Artillery Regiment and the " Bologna " Group with the 40th Infantry Regiment " Bologna " and one artillery group of the 21st Artillery Regiment . The 6th Armoured Cavalry Squadron passed to the VI Military Territorial Command . The 121st Artillery Regiment had already left the division on 5 June 1953 when the regiment became the 121st Heavy Anti - air Artillery Regiment . The " Trieste " Group moved from Bologna to its namesake city Trieste after it was returned to Italy on 26 October 1954 . In 1955 the army decided to assign the defence of Trieste to the " Folgore " Motorised Infantry Division . Therefore the " Trieste " Group was disbanded on 15 September 1955 and its units passed to the " Folgore " , while on the same day the " Bologna " Group was elevated to division and was returned the name " Trieste " . In September 1956 the " Trieste " and the " Friuli " Motorised Infantry Division entered the newly raised VI Army Corps . On 30 May 1960 the division received the XI armoured battalion and on 20 October of the same year the division was reduced to " Trieste " Infantry Brigade . The brigade was headquartered in Bologna and most of its units stationed in the surrounding region of Emilia - Romagna . By 1964 the structure of the brigade was : In 1972 the VI Army Corps was disbanded and the brigade along with the " Friuli " came under the Tuscany - Emilian Military Region . In 1975 the Italian army undertook a major reorganisation : the regimental level was abolished and brigades took direct command of battalions , more units were mechanized and higher commands realigned to better defend Italy against a potential Warsaw Pact attack . Therefore on 1 August 1975 the " Trieste " entered the " Folgore " Mechanized Division and changed its name to " Trieste " Mechanized Brigade . The 40th Infantry Regiment was disbanded and each of its three battalions became a newly independent battalion under direct control of the brigade . The brigades new composition was : On 1 August 1986 the Army disbanded all its divisions and the " Trieste " passed to the 3rd Army Corps in Milan . As tensions between NATO and the Warsaw Pact eased the 40th Mechanized Infantry Battalion " Bologna " was disbanded on 16 December 1989 . After the end of the Cold War Italian Army began a draw - down of its forces : six brigades were disbanded in 1991 while the " Trieste " merged on 1 June 1991 with the " Friuli " Motorised Brigade . The new brigade was named " Friuli " Mechanized Brigade , but headquartered in Bologna in the HQ building of the " Trieste " brigade . Before the merger the 37th Mechanized Infantry Battalion " Ravenna " had disbanded on 28 February 1991 and its barracks in Bologna had been taken over by the 10th Bersaglieri Battalion " Bezzecca " of the disbanded " Goito " Mechanized Brigade on 1 March 1991 . Today . In 1992 the Army decided to rename its battalions as regiments for historical reasons . When the 66th Mechanized Infantry Battalion " Valtellina " became the 66th Infantry Regiment in 1992 the army decided to not give the regiments its traditional name " Valtellina " , but to give the regiment the name of the dissolved brigade . Thus the 66th Infantry Regiment " Trieste " became the custodian of the history , traditions and honours of the " Valtellina " regiment , as well as the " Trieste " brigade and the " Trieste " division .