Wartime relations between the United States and the Soviet Union can be considered one of the highpoints in the longstanding interaction between these two great powers. Although not without tensions--such as differing ideological and strategic goals, and lingering suspicions--the collaborative relationship between the United States and the Soviet Union nonetheless was maintained. Moreover, it was instrumental in defeating Nazi Germany in 1945.
The United States greeted the democratic Russian Revolution of February 1917 with great enthusiasm, which cooled considerably with the advent of the Bolsheviks in October 1917. The United States, along with many other countries, refused to recognize the new regime, arguing that it was not a democratically elected or representative government. The policy of non-recognition ended in November 1933, when the United States, under President Franklin D. Roosevelt, established full diplomatic relations with the Soviet Union, the last major power to do so.
that a US military aircraft, trespassing in Soviet airspace, was shot down over Sverdlovsk
