What happened to Mao and his Communists? I can't see Chaing Kai Shek winning the Civil War without American help. The problem is America is also supporting Communist Russia against the Nazis. So what happened?
A. Mao jumps on the American bandwagon. He takes American supplies and fights the Japanese. A successful Dixie/Marshall Mission in this timeline. The CCP spearheads aiding their Russian comrades in the Urals while Chaing handles the domestic chores.
B. The CCP refuses to play ball. The US cuts them off from supplies. The Russians don't share lend lease with them. CCP members either jump ship to the KMT or the hardcore go to the Urals and die out fighting Nazis.
C. Again the CCP refuse to cooperate. US enters the Chinese Civil War making it this ATL's Korean War. Mao's forces are broken and absorbed into Nationlist China.
I haven't worked out the details, but my vague idea is the combination of the USSR collapsing and the Americans putting considerably more force into the Pacific War somehow does the trick. Maybe American troops arrive in Manchuria and China proper after the Japanese surrender to oversee their withdrawal (no Soviet offensives out of the Russian Far East ITTL, of course)? I dunno.