https://en.wikipedia.org/wiki/Sino-Soviet_split
In light of de-Stalinization, the CPSU's changed ideological orientation — from Stalin's confrontation of the West to Khrushchev's coexistence with the West — posed serious problems of ideological credibility and political authority for Mao, who had emulated Stalin's style of leadership and practical application of Marxism–Leninism in the development of Chinese Communism and the People's Republic of China.[14]
From Mao's perspective, the success of the Soviet Union's foreign policy of peaceful coexistence with the West would geopolitically isolate the PRC;[16]
