中苏关系
Soviet leadership changes between 1982 and 1985 provided openings for renewed diplomacy, as high-level Chinese delegations attended the funerals of Soviet leaders Leonid Brezhnev, Yuriy Andropov, and Konstantin Chernenko. During this time, Sino-Soviet relations improved gradually in many areas: trade expanded, economic and technical exchanges were resumed (including the renovation of projects originally built with Soviet assistance in the 1950s), border points were opened, and delegations were exchanged regularly.