Upvote:2
Maybe another way of putting it was that the U.S. tried to "capitalize" on discord between Russia and China.
The U.S. supported China during the Sino-Vietnamese "war" of 1979,by establishing an Embassy in Beijing during the war.
Also, after the Soviet Union invaded Afghanistan in the early 1980s, the U.S. sent weapons such as "stinger" missiles to the Afghanis, which pleased the Chinese, because they were allied with the Pakistanis against the Soviets (and Indians).
Upvote:9
No. The Sino-Soviet split was motivated by fundamental differences in national interests, so there is little that a third party like the US could have done to influence it. Furthermore, US policy makers were wilfully ignorant of early signs of the split, which means that they did not exploit the situation until it had become abundantly clear, by the aforementioned opening of Sino-US relations by Kissenger and Nixon.
The Soviets and CCP were arguably playing off each other from the start, both looking out for their own interests. There are numerous examples:
A minority of the US's Intelligence Community were well aware of the coming split before it became obvious around 1960 and undeniable in 1969. It was widely believed for a long time that the communist bloc stood in solidarity against the West and that shared ideology could trump differences in national interests, and this conviction was hard to shake even in the face of overwhelming evidence. It certainly didn't help that this split developed so soon after the Red Scare; CIA analysts believing in the coming split were considered "heretics".
In fact the only major action that the US took to undermine Sino-Soviet relations was its hardline reaction to the U2 spy plane incident which made Khrushev look weak to hardliners, including Mao, and convinced the latter to move away from the USSR. But given that the incident was counterproductive to American interests, it's highly unlikely that this was done deliberately, and the split was well under way at this point.