Question: The military group of which the Air Defense Artillery is a branch was unprepared for the invasion of the territory the Nazis occupied. The country of this group was the only communist country to have an embassy where?

Context paragraphs:
paragraph_text: Art theft and looting occurred on a massive scale during World War II. It originated with the policies of the Axis countries, primarily Nazi Germany and Japan, which systematically looted occupied territories. Near the end of the war the Soviet Union, in turn, began looting reclaimed and occupied territories. "The grand scale of looted artwork by the Nazis has resulted in the loss of many pieces being scattered across the world." (Minyard, 2007)
title: Art theft and looting during World War II
paragraph_text: A major consideration was the possible Soviet reaction in the event that the US intervened. The Truman administration was fretful that a war in Korea was a diversionary assault that would escalate to a general war in Europe once the United States committed in Korea. At the same time, "[t]here was no suggestion from anyone that the United Nations or the United States could back away from [the conflict]". Yugoslavia–a possible Soviet target because of the Tito-Stalin Split—was vital to the defense of Italy and Greece, and the country was first on the list of the National Security Council's post-North Korea invasion list of "chief danger spots". Truman believed if aggression went unchecked a chain reaction would be initiated that would marginalize the United Nations and encourage Communist aggression elsewhere. The UN Security Council approved the use of force to help the South Koreans and the US immediately began using what air and naval forces that were in the area to that end. The Administration still refrained from committing on the ground because some advisers believed the North Koreans could be stopped by air and naval power alone.
title: Korean War
paragraph_text: In the course of his Gallic Wars, Julius Caesar invaded Britain twice: in 55 and 54 BC. The first invasion, in late summer, was unsuccessful, gaining the Romans little else besides a beachhead on the coast of Kent. The second invasion achieved more: the Romans installed a king, Mandubracius, who was friendly to Rome, and they forced the submission of Mandubracius's rival, Cassivellaunus. No territory was conquered and held for Rome; instead, all Roman - occupied territory was restored to the allied Trinovantes, along with the promised tribute of the other tribes in what is now eastern England.
title: Julius Caesar's invasions of Britain
paragraph_text: Czechoslovakia remained the only democracy in this part of Europe in the interwar period. However, the Czech part of Czechoslovakia was occupied by Germany in World War II, while the Slovak region became the Slovak Republic; Czechoslovakia was liberated in 1945 by the armies of the Soviet Union and the United States. The Czech country lost the majority of its German - speaking inhabitants after they were expelled following the war. The Communist Party of Czechoslovakia won the 1946 elections and after the 1948 coup d'état, Czechoslovakia became a one - party communist state under Soviet influence. In 1968, increasing dissatisfaction with the regime culminated in a reform movement known as the Prague Spring, which ended in a Soviet - led invasion. Czechoslovakia remained occupied until the 1989 Velvet Revolution, when the communist regime collapsed and market economy was reintroduced. On 1 January 1993, Czechoslovakia peacefully dissolved, with its constituent states becoming the independent states of the Czech Republic and Slovakia. The Czech Republic joined NATO in 1999 and the EU in 2004.
title: Czech Republic
paragraph_text: Paul Bader (20 July 1883 – 28 February 1971) was a "General der Artillerie" (lieutenant general) of the Wehrmacht during World War II who commanded the 2nd Motorized Infantry Division in the invasions of Poland and France then served as a corps commander and as Military Commander in Serbia. During his time in occupied Yugoslavia troops under his command engaged in several major anti-Partisan operations, within both the Territory of the Military Commander in Serbia and in the Independent State of Croatia.
title: Paul Bader
paragraph_text: The strategy behind the formation of the Warsaw Pact was driven by the desire of the Soviet Union to dominate Central and Eastern Europe. This policy was driven by ideological and geostrategic reasons. Ideologically, the Soviet Union arrogated the right to define socialism and communism and act as the leader of the global socialist movement. A corollary to this idea was the necessity of intervention if a country appeared to be violating core socialist ideas and Communist Party functions, which was explicitly stated in the Brezhnev Doctrine. Geostrategic principles also drove the Soviet Union to prevent invasion of its territory by Western European powers.
title: Warsaw Pact
paragraph_text: In 1968, Tito offered Czechoslovak leader Alexander Dubček to fly to Prague on three hours notice if Dubček needed help in facing down the Soviets. In April 1969, Tito removed generals Ivan Gošnjak and Rade Hamović in the aftermath of the invasion of Czechoslovakia due to the unpreparedness of the Yugoslav army to respond to a similar invasion of Yugoslavia.
title: Josip Broz Tito
paragraph_text: Nazi Germany terminated the Molotov–Ribbentrop Pact at 03:15 on 22 June 1941 by launching a massive attack on the Soviet positions in eastern Poland which marked the beginning of the invasion of the Soviet Union known as Operation Barbarossa. Stalin had ignored several warnings that Germany was likely to invade, and ordered no 'full-scale' mobilization of forces although the mobilization was ongoing. After the launch of the invasion, the territories gained by the Soviet Union as a result of the Molotov–Ribbentrop Pact were lost in a matter of weeks. Within six months, the Soviet military had suffered 4.3 million casualties, and Germany had captured three million Soviet prisoners. The lucrative export of Soviet raw materials to Nazi Germany over the course of the Nazi–Soviet economic relations (1934–41) continued uninterrupted until the outbreak of hostilities. The Soviet exports in several key areas enabled Germany to maintain its stocks of rubber and grain from the first day of the invasion until October 1941.
title: Molotov–Ribbentrop Pact
paragraph_text: The 1939 German ultimatum to Lithuania was an oral ultimatum which Joachim von Ribbentrop, Foreign Minister of Nazi Germany, presented to Juozas Urbšys, Foreign Minister of Lithuania on 20 March 1939. The Germans demanded that Lithuania give up the Klaipėda Region (also known as the Memel Territory) which had been detached from Germany after World War I, or the Wehrmacht would invade Lithuania. The Lithuanians had been expecting the demand after years of rising tension between Lithuania and Germany, increasing pro-Nazi propaganda in the region, and continued German expansion. It was issued just five days after the Nazi occupation of Czechoslovakia. The 1924 Klaipėda Convention had guaranteed the protection of the status quo in the region, but the four signatories to that convention did not offer any material assistance. The United Kingdom and France followed a policy of appeasement, while Italy and Japan openly supported Germany, and Lithuania was forced to accept the ultimatum on 22 March. It proved to be the last territorial acquisition for Germany before World War II, producing a major downturn in Lithuania's economy and escalating pre-war tensions for Europe as a whole.
title: 1939 German ultimatum to Lithuania
paragraph_text: Greece was eventually occupied by the Nazis who proceeded to administer Athens and Thessaloniki, while other regions of the country were given to Nazi Germany's partners, Fascist Italy and Bulgaria. The occupation brought about terrible hardships for the Greek civilian population. Over 100,000 civilians died of starvation during the winter of 1941–1942, tens of thousands more died because of reprisals by Nazis and collaborators, the country's economy was ruined and the great majority of Greek Jews were deported and murdered in Nazi concentration camps. The Greek Resistance, one of the most effective resistance movements in Europe fought vehemently against the Nazis and their collaborators. The German occupiers committed numerous atrocities, mass executions, and wholesale slaughter of civilians and destruction of towns and villages in reprisals. In the course of the concerted anti-guerrilla campaign, hundreds of villages were systematically torched and almost 1,000,000 Greeks left homeless. In total, the Germans executed some 21,000 Greeks, the Bulgarians 40,000 and the Italians 9,000.
title: Greece
paragraph_text: Because of its neutrality, Yugoslavia would often be rare among Communist countries to have diplomatic relations with right-wing, anti-Communist governments. For example, Yugoslavia was the only communist country allowed to have an embassy in Alfredo Stroessner's Paraguay. One notable exception to Yugoslavia's neutral stance toward anti-communist countries was Chile under Pinochet; Yugoslavia was one of many countries which severed diplomatic relations with Chile after Salvador Allende was overthrown. Yugoslavia also provided military aid and arms supplies to staunchly anti-Communist regimes such as that of Guatemala under Kjell Eugenio Laugerud García.
title: Josip Broz Tito
paragraph_text: The multi-national Communist armed forces' sole joint action was the Warsaw Pact invasion of Czechoslovakia in August 1968. All member countries, with the exception of the Socialist Republic of Romania and the People's Republic of Albania participated in the invasion.
title: Warsaw Pact
paragraph_text: The Normandy landings were the landing operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as D-Day, it was the largest seaborne invasion in history. The operation began the liberation of German-occupied France (and later western Europe) from Nazi control, and laid the foundations of the Allied victory on the Western Front.
title: Normandy landings
paragraph_text: Currently, the army is divided into the Regular Army, the Army Reserve, and the Army National Guard. The army is also divided into major branches such as Air Defense Artillery, Infantry, Aviation, Signal Corps, Corps of Engineers, and Armor. Before 1903 members of the National Guard were considered state soldiers unless federalized (i.e., activated) by the President. Since the Militia Act of 1903 all National Guard soldiers have held dual status: as National Guardsmen under the authority of the governor of their state or territory and, when activated, as a reserve of the U.S. Army under the authority of the President.
title: United States Army
paragraph_text: In contrast, the ROK Army defenders were relatively unprepared and ill-equipped. In South to the Naktong, North to the Yalu (1961), R.E. Appleman reports the ROK forces' low combat readiness as of 25 June 1950. The ROK Army had 98,000 soldiers (65,000 combat, 33,000 support), no tanks (they had been requested from the U.S. military, but requests were denied), and a 22-piece air force comprising 12 liaison-type and 10 AT6 advanced-trainer airplanes. There were no large foreign military garrisons in Korea at the time of the invasion, but there were large U.S. garrisons and air forces in Japan.
title: Korean War
paragraph_text: Iron Dome (, "") is a mobile all-weather air defense system developed by Rafael Advanced Defense Systems and Israel Aerospace Industries. The system is designed to intercept and destroy short-range rockets and artillery shells fired from distances of to away and whose trajectory would take them to an Israeli populated area. Israel hopes to increase the range of Iron Dome's interceptions, from the current maximum of to and make it more versatile so that it could intercept rockets coming from two directions simultaneously.
title: Iron Dome
paragraph_text: The Łódź Ghetto or Litzmannstadt Ghetto (after the Nazi German name of Łódź) was a World War II ghetto established by the Nazi German authorities for Polish Jews and Roma following the 1939 invasion of Poland. It was the second-largest ghetto in all of German-occupied Europe after the Warsaw Ghetto. Situated in the city of Łódź, and originally intended as a preliminary step upon a more extensive plan of creating the "Judenfrei" province of Warthegau, the ghetto was transformed into a major industrial centre, manufacturing war supplies for Nazi Germany and especially for the German Army. The number of people incarcerated in it was augmented further by the Jews deported from the Third Reich territories.
title: Łódź Ghetto
paragraph_text: The armed forces have three branches: Navy, Army and Air Force. They serve primarily as a self-defense force whose mission is to protect the territorial integrity of the country and provide humanitarian assistance and security at home and abroad. As of 2008, the three branches numbered 39,200 active personnel including 7,500 women. Portuguese military expenditure in 2009 was $5.2 billion, representing 2.1 percent of GDP. Military conscription was abolished in 2004. The minimum age for voluntary recruitment is 18 years.
title: Portugal
paragraph_text: The AGM-86 ALCM is an American subsonic air-launched cruise missile (ALCM) built by Boeing and operated by the United States Air Force. This missile was developed to increase the effectiveness and survivability of the Boeing B-52H Stratofortress bomber. In combination, the missile dilutes an enemy's forces and complicates air defense of its territory.
title: AGM-86 ALCM
paragraph_text: Iron Beam (, "") is an air defense system which is in development by Israeli defense contractor Rafael Advanced Defense Systems. Unveiled at the Singapore Air Show on February 11, 2014. The system is designed to destroy short-range rockets, artillery, and mortars with a range of up to , too small for the Iron Dome system to intercept effectively. In addition, the system could also intercept unmanned aerial vehicles. Iron Beam will use a "directed high energy laser beam" to destroy hostile targets with ranges of up to . Iron Beam will constitute the fifth element of Israel's integrated air defense system, in addition to Arrow 2, Arrow 3, David's Sling, and Iron Dome. However, Iron Beam is also a stand-alone system.
title: Iron Beam

Reasoning steps:
What territory did the Nazi occupy? >>>> Czechoslovakia
The Air Defense Artillery is a branch of what? >>>> the Army
What the Army was unprepared for the invasion of Czechoslovakia ? >>>> Yugoslavia
Yugoslavia was the only communist country to have an embassy where? >>>> Alfredo Stroessner's Paraguay

Answer: spans: Alfredo Stroessner's Paraguay