In 1945, the Soviet Union invaded and overran Manchukuo, and following Japan's defeat in the Pacific War, Mantetsu itself was dissolved by order of the American occupation authorities in occupied Japan. The railway was operated by the Soviets for a time, and handed over to China Railway after the establishment of the People's Republic of China in 1949. Fengtian has been called Shenyang since 1945, and the line from there to Dalian is today part of the Shenda Railway from Changchun to Dalian, whilst the Shenyang–Changchun section is now part of the Jingha Railway; the branch lines have also been part of China Railway since then.