Question: A country was in effective control of both political and military functions of the organization the People's Socialist Republic of Albania belonged to. When did this country agree to a unified Germany inside the organization that ran an annual event called Exercise Reforger?

Knowledge 1: Exercise Reforger
Exercise Campaign Reforger (from return of forces to Germany) was an annual exercise and campaign conducted, during the Cold War, by NATO. The exercise was intended to ensure that NATO had the ability to quickly deploy forces to West Germany in the event of a conflict with the Warsaw Pact. Although most troops deployed were from the United States, the operation also involved a substantial number of troops from other NATO countries including Canada and the United Kingdom. [SEP] Knowledge 2: German reunification
Horst Teltschik, Kohl's foreign policy advisor, later recalled that Germany would have paid ``100 billion deutschmarks ''if the Soviets demanded it. The USSR did not make such great demands, however, with Gorbachev stating in February 1990 that`` The Germans must decide for themselves what path they choose to follow''. In May 1990 he repeated his remark in the context of NATO membership while meeting Bush, amazing both the Americans and Germans. This removed the last significant roadblock to Germany being free to choose its international alignments, though Kohl made no secret that he intended for the reunified Germany to inherit West Germany's seats in NATO and the EC. [SEP] Knowledge 3: Hero of Socialist Labour (Albania)
Hero of Socialist Labour () was an honorary title in Albania and other Warsaw Pact countries. It was the highest degree of distinction for exceptional achievements in national economy and culture. It provided a similar status to the title People's Hero of Albania that was awarded for heroic deeds, but unlike the latter, was awarded to citizens who contributed to the development of Albania's industry, agriculture, transportation, trade, science and technology and promoted the might and the glory of Albania. [SEP] Knowledge 4: Warsaw Pact
The Warsaw Treaty's organization was two-fold: the Political Consultative Committee handled political matters, and the Combined Command of Pact Armed Forces controlled the assigned multi-national forces, with headquarters in Warsaw, Poland. Furthermore, the Supreme Commander of the Unified Armed Forces of the Warsaw Treaty Organization which commands and controls all the military forces of the member countries was also a First Deputy Minister of Defense of the USSR, and the Chief of Combined Staff of the Unified Armed Forces of the Warsaw Treaty Organization was also a First Deputy Chief of the General Staff of the Armed Forces of the USSR. Therefore, although ostensibly an international collective security alliance, the USSR dominated the Warsaw Treaty armed forces.
Knowledge 1: Exercise Reforger
Exercise Campaign Reforger (from return of forces to Germany) was an annual exercise and campaign conducted, during the Cold War, by NATO. The exercise was intended to ensure that NATO had the ability to quickly deploy forces to West Germany in the event of a conflict with the Warsaw Pact. Although most troops deployed were from the United States, the operation also involved a substantial number of troops from other NATO countries including Canada and the United Kingdom. [SEP] Knowledge 2: German reunification
Horst Teltschik, Kohl's foreign policy advisor, later recalled that Germany would have paid ``100 billion deutschmarks ''if the Soviets demanded it. The USSR did not make such great demands, however, with Gorbachev stating in February 1990 that`` The Germans must decide for themselves what path they choose to follow''. In May 1990 he repeated his remark in the context of NATO membership while meeting Bush, amazing both the Americans and Germans. This removed the last significant roadblock to Germany being free to choose its international alignments, though Kohl made no secret that he intended for the reunified Germany to inherit West Germany's seats in NATO and the EC. [SEP] Knowledge 3: Vangjush Dako
Vangjush Dako is the current mayor of the city of Durrës, Albania. He was elected to the post following the February 2007 local elections. He is a member of the Socialist Party of Albania. [SEP] Knowledge 4: Warsaw Pact
The Warsaw Treaty's organization was two-fold: the Political Consultative Committee handled political matters, and the Combined Command of Pact Armed Forces controlled the assigned multi-national forces, with headquarters in Warsaw, Poland. Furthermore, the Supreme Commander of the Unified Armed Forces of the Warsaw Treaty Organization which commands and controls all the military forces of the member countries was also a First Deputy Minister of Defense of the USSR, and the Chief of Combined Staff of the Unified Armed Forces of the Warsaw Treaty Organization was also a First Deputy Chief of the General Staff of the Armed Forces of the USSR. Therefore, although ostensibly an international collective security alliance, the USSR dominated the Warsaw Treaty armed forces.
Knowledge 1: Exercise Reforger
Exercise Campaign Reforger (from return of forces to Germany) was an annual exercise and campaign conducted, during the Cold War, by NATO. The exercise was intended to ensure that NATO had the ability to quickly deploy forces to West Germany in the event of a conflict with the Warsaw Pact. Although most troops deployed were from the United States, the operation also involved a substantial number of troops from other NATO countries including Canada and the United Kingdom. [SEP] Knowledge 2: German reunification
Horst Teltschik, Kohl's foreign policy advisor, later recalled that Germany would have paid ``100 billion deutschmarks ''if the Soviets demanded it. The USSR did not make such great demands, however, with Gorbachev stating in February 1990 that`` The Germans must decide for themselves what path they choose to follow''. In May 1990 he repeated his remark in the context of NATO membership while meeting Bush, amazing both the Americans and Germans. This removed the last significant roadblock to Germany being free to choose its international alignments, though Kohl made no secret that he intended for the reunified Germany to inherit West Germany's seats in NATO and the EC. [SEP] Knowledge 3: Florjon Mima
Florjon Prokop Mima is a member of the Assembly of the Republic of Albania for the Democratic Party of Albania. [SEP] Knowledge 4: Warsaw Pact
The Warsaw Treaty's organization was two-fold: the Political Consultative Committee handled political matters, and the Combined Command of Pact Armed Forces controlled the assigned multi-national forces, with headquarters in Warsaw, Poland. Furthermore, the Supreme Commander of the Unified Armed Forces of the Warsaw Treaty Organization which commands and controls all the military forces of the member countries was also a First Deputy Minister of Defense of the USSR, and the Chief of Combined Staff of the Unified Armed Forces of the Warsaw Treaty Organization was also a First Deputy Chief of the General Staff of the Armed Forces of the USSR. Therefore, although ostensibly an international collective security alliance, the USSR dominated the Warsaw Treaty armed forces.

Answer: May 1990