Soviet war in Afghanistan - Wikipedia

The initial Soviet deployment of the 40th Army in Afghanistan began on December 24, 1979 under Soviet premier Leonid Brezhnev.[18] The final troop withdrawal started on May 15, 1988, and ended on February 15, 1989 under the last Soviet leader Mikhail Gorbachev. - Soviet war in Afghanistan - Wikipedia, the free encyclopedia
The Soviet Union at War: Afghanistan 1979-1989 - YouTube