USSR supporting India in public( 1962) The communist parties of the two countries accused each other for betraying original Marxism( 1960s) USSR calling back its experts and put an end of many agreements between the two countries (1960s) After Khrushchev's resignation, PRC hoping to improve ties with USSR, but refused, and the two countries fell into military confrontation( since 1964)USSR supporting India in public ( 1962) The communist parties of the two countries accused each other for betraying original Marxism ( 1960s) USSR calling back its experts and put an end of many agreements between the two countries (1960s) After Khrushchev’s resignation, PRC hoping to improve ties with USSR, but refused; and the two countries fell into military confrontation ( since 1964)