From the international event from the Cold war, the Berlin Blockade was one of the first major international crises of the Cold War. During the multinational occupation of post–World War II Germany, the Soviet Union blocked the Western Allies' railway, road, and canal access to the sectors of Berlin under Western control. In the US event from domestic arena, the Cold War Domestic and Foreign Events and Issues. Out of all of the Units of Study for U.S.History Since 1877, the largest era is the time period known as the Cold War. The student expectations for the years 1945-1992 have multiple issues.