Why was the United States furious at Joseph Stalin early on in World War II?

The Allies had ignored all of Stalin's appeals for a Second Front in 1942 and 1943, and had delayed invading France until 1944. This made Stalin very suspicious. He believed that they had wanted to destroy Russia by fighting Germany on its own.

were they embroiderers?

s the president shall be commander in chief of the army and navy of the united states, and of the militia of the several states, when called into the actual service of the united states; he may require the opinion, in writing, of the principal officer in each of the executive departments. sooo yeahhh

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