This is a catch-all collection for sources on Sino-Soviet relations. Its contents are described in an essay by Charles Kraus, "The Sino-Soviet Alliance, 70 Years Later" (February 2020). To see focused collections that deal with specific periods of the Sino-Soviet relationship during the Cold War, see (1) Making of the Sino-Soviet Alliance, 1945-1950; (2) Sino-Soviet Alliance, 1950-1959; (3) Sino-Soviet Split, 1960-1984; (4) Sino-Soviet Border Conflict, 1969; and (5) Sino-Soviet Rapprochement, 1985-1989. (Image, Soviet propaganda poster, "Friends Forever.")