Did the USSR, Great Britain and the US agree on all of their strategies? What were major agreements or disagreements?Mostly curious about the period between 1940 and 1943.
To some extent, there was agreement over strategy. The US and the British, for example, created the Atlantic Charter, in which they agreed to concentrate first on defeating Germany, and only later on fighting Japan.
This is not to say that there was complete agreement. For example, the USSR was displeased with the Western Allies over the issue of a western front. The Russians felt that the British and Americans were allowing them to soak up all the German attacks without doing much of anything to help. They wanted the Western Allies to invade Europe before the British and Americans were at all ready.
In addition, there were some disputes between the US and Britain as to where American troops should go into battle, where invasions should be mounted, and other such smaller aspects of strategy.