During world war ii, conferences such as those held in tehran, yalta, and potsdam demonstrated that a) the soviet union would be an obstacle to defeating hitler. b) the allies were uncertain as to whether or not hitler could be defeated. c) only the united states was willing to provide troops to defeat the japanese. d) nations with different political ideologies could cooperate to defeat a common foe.

D)nations with different political ideologies could cooperate to defeat a common foe.

Explanation:

The Tehran conference was a meeting that took place between November 28 and December 1, 1943, between the leaders Joseph Stalin, Winston Churchill and Franklin D. Roosevelt, who formed the Allied side. It constitutes one of the maximum exponents of cooperation of the allies in the Second World War. It was the first conference between the three great ones (the Soviet Union, the United States, and the United Kingdom) in which Roosevelt was present, since he did not attend the Moscow conference, in August 1942. He succeeded to the conference of Cairo and was followed by the Yalta conference and the Potsdam conference. The main debate focused on the opening of a second front in Western Europe. The Yalta conference was the meeting held before the end of World War II (February 4 to 11, 1945) by Joseph Stalin, Winston Churchill and Franklin D. Roosevelt, as heads of government of the Soviet Union, the United Kingdom and of the United States, respectively. It is usually considered the beginning of the Cold War. The Potsdam conference was a meeting held in Potsdam (near Berlin), Germany between July 17 and August 2, 1945 and which took place in the Cecilienhof palace. The participants were the Soviet Union, the United Kingdom and the United States, the most powerful of the allies who defeated the Axis powers in World War II. The heads of government of these three nations were the general secretary of the Communist Party of the Soviet Union, Joseph Stalin, Prime Minister Winston Churchill (later Clement Attlee) and President Harry S. Truman, respectively.

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