WORLD HISTORY

Detailed explanation-1: -In World War II, the three great Allied powers-Great Britain, the United States, and the Soviet Union-formed a Grand Alliance that was the key to victory. But the alliance partners did not share common political aims, and did not always agree on how the war should be fought.

Detailed explanation-2: -The Soviet Union officially maintained neutrality during WW2 but cooperated with and assisted Germany. After Nazi Germany attacked the USSR on June 22, 1941, the country allied with the UK and then the United States after the latter joined the war in December 1941.

Detailed explanation-3: -The Soviet Union, which initially had a nonaggression pact with Germany and participated in its invasion of Poland, joined the Allies in June 1941, after the German invasion of the Soviet Union.

Detailed explanation-4: -The most important factor in swaying the Soviets eventually to enter into an alliance with the United States was the Nazi decision to launch its invasion of the Soviet Union in June 1941.

Detailed explanation-5: -The Axis powers (Germany, Italy, Japan) were opposed by the Allied Powers (led by Great Britain, the United States, and the Soviet Union). Five other nations joined the Axis during World War II: Hungary, Romania, Bulgaria, Slovakia, and Croatia.

Detailed explanation-6: -Then, in the early summer of 1941, Hitler betrayed Stalin by invading Russia, forcing the Soviet Union to change sides and ally itself with Britain and, later, America.

Detailed explanation-7: -Answer and Explanation: The Soviet Union joined the Allies after the Nazis invaded the Soviet Union with Operation Barbarossa in 1941. Hitler launched an invasion in the summer of 1941 to conquer the Soviet Union and prompted Stalin to declare war on Germany and align himself with the Allies. Hitler?