read Mongolia history book and USSR
USSR own claimed "finally 100% resolved it with Mao"
Stalin was surprsied that Mao did not ask Mongolia
(Mao can say we are brothers. so return)
Mongolia told" KMT long time against Mongolia people indep.
even they said YES, they denied again....
With Mao won the war. Mao is a brother of us, the foundation PRC finally
lead our real indep, even so, KMT, US and other west enemies against us
and stop out UN appli
You can also read US dept of States documents.
1949, PRC now fully agreed