What was a cause of Soviet mistrust of the Western Allies in World War II?

What was a cause of Soviet mistrust of the Western Allies in World War II? The Soviets felt it took too long for the allies to invade France. The Cold War resulted from: lack of trust between the United States and the Soviet Union.

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.