The territory of Manchuria was a large territory located in Northwest China. Before the nuclear war in 1983 the area was under Chinese control, and had remained so since the conclusion of the Manchurian Strategic Offensive Operation, operated by the USSR in 1945.The territory became a base for the Chinese People's Liberation Army during the Chinese Civil War, which ensued from the end of World War II until 1949. The region was also used to transport Chinese forces in the Korean peninsula during the Korean War. The region was also a commonly disputed border between the USSR and China, culminating in the 1969 Sino-Soviet Border Conflict.