The real issue is that, unlike Chamberlain (who was widely reviled for appeasement, but we now know was arguably acting on advice from generals who asked him to delay war so they had more time to prepare) and the US, Stalin was an idiot who actively helped Hitler prepare the invasion of his own country:
You’re absolutely right about US, though can at least say that FDR wanted more US involvement and started Lend Lease years before US entered the war proper and used foreign policy and economic measures to help the Allies undermine German attempts to gain more resources.
Where as you point out, the USSR became economic allies with Germany and sold them resources that would be used against them in 41
TBF neither did the Americans.
The real issue is that, unlike Chamberlain (who was widely reviled for appeasement, but we now know was arguably acting on advice from generals who asked him to delay war so they had more time to prepare) and the US, Stalin was an idiot who actively helped Hitler prepare the invasion of his own country:
You’re absolutely right about US, though can at least say that FDR wanted more US involvement and started Lend Lease years before US entered the war proper and used foreign policy and economic measures to help the Allies undermine German attempts to gain more resources.
Where as you point out, the USSR became economic allies with Germany and sold them resources that would be used against them in 41