Transcripts of the December 1949 and January 1950 sessions between Mao Tse-tung and Joseph Stalin were obtained from Soviet archives by the New York Times in 1995,
Moscow December 1949: The first meeting between Mao Tse-tung and Joseph Stalin took place only months after Mao’s revolutionary army had taken control of China.
Mao asked Stalin to send “volunteer” pilots or secret military detachments to speed up the conquest of Formosa (Taiwan). Stalin only agreed to consider it.

Moscow February 1950 – Joseph Stalin and Mao Tse-tung signed a mutual defense treaty which opened what the United States saw as a new front in the cold war.
But the new records and recently released documents from Chinese archives suggest that the alliance did not have a strong foundation and may have been foredoomed.