As of October 1972...
Chairman of the People's Republic of China:
1949-1953: Mao Tse-tung (CPC)
1953-1956: Zhu De (CPC)
1956-1958: Deng Xiaoping (CPC)
1958-1959: Lin Biao (Junta/Military)
1959-1965: Jiang Qing (CPC)
1965-1972: Aisin-Gioro Puyi (CPC)
General Secretary of the Soviet Union:
1922 - 1949: Joseph Stalin (CPSU)
1949 - present: Georgy Zhukov (CPSU)
President of the Republic of France:
1947 - 1954: Vincent Auriol (SFIO)
1954 - 1958: Georges Bidault (Popular Republican)
1958 - 1966: Charles de Gaulle (UNR)
1966 - present: Francois Mitterand (FGDS)
Prime Minister of the United Kingdom:
1947 - 1951: Clement Attlee (Labour)
1951 - 1955: Winston Churchill (Conservative)
1955 - 1956: Anthony Eden (Conservative)
1956 - 1959: Harold MacMillan (Conservative)
1959 - 1966: Hugh Gaitskell (Labour)
1966 - 1970: Edward Heath (Conservative)
1970 - present: Harold Wilson (Labour)
President of the United States:
1945-1953: Harry S. Truman (Democratic)
1953 - 1961: Estes Kefauver (Democratic)
1961 - 1969: Nelson Rockefeller (Republican)
1969 - present: Harold Stassen (Republican)
Chancellor of the Federal Republic of Germany:
1949 - 1964: Konrad Adenauer (CDU)
1964 - : Ludwig Erhard (CDU)
General Secretary of the German Democratic Republic:
1949: Johannes Dieckmann (LDPD)
1949 - 1960: Wilhelm Pieck (SED)
1960 - present: Walter Ulbricht (SED)
President of the Democratic People's Republic of Korea:
1948 - 1950: Kim Il-sung (KWP)
1950 - 1964: Pak Hon-yong (KWP)
1964 - present: Choe Chang-ik (KWP)
President of the Republic of Korea
1948 - 1958: Syngman Rhee (Liberal)
1958 - present: Park Chung Hee (Junta)