Korean War
Both sides blame each other for starting the war. The North, led by the communist Kim Il-Sung, was helped mostly by China, led by Mao Zedong, and the Soviet Union, led by Joseph Stalin. There was medical support from East Germany, led by Walter Ulbricht); Hungary, led by Mátyás Rákosi; Romania, led by Gheorghe Gheorghiu-Dej; Czechoslovakia,(led by Klement Gottwald; Poland, led by Bolesław Bierut; and Bulgaria . Other support came from Mongolia, led by Khorloogiin Choibalsan