You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
To me the agreement just seems kind of out of style for Russia. I understand this with a Berlin right on the line between USA captured and Russia captured Germany but with it right in the middle of Russian controlled Germany I would have just kept the whole city if I had been Stalin.
Is this something that could have happened with out the US starting a conflict or did the US make it very clear that keeping all of it wasn't an option on the table?