This clash eventually pushed China to move closer to the United States in the late 1960s and 1970s, as it feared the Soviet Union directly on its border even more. Sources: Wills, Matthew. “A Messy Divorce: The Sino-Soviet Split.” JSTOR Daily, January 17, 2024. Radchenko, Sergey. “The Sino-Soviet Split.” In The Cambridge History of the Cold War, edited by Melvyn P. Leffler and Odd Arne Westad, 349–372. Cambridge: Cambridge University Press, 2010. PBS. “Sino-Soviet Border Disputes.” American Expe