Henry Kissinger was one of the most influential and disputed figures in twentieth-century U.S. foreign policy. He served as National Security Adviser and later as Secretary of State, working at the center of American diplomacy during the Nixon and Ford administrations.

From Nazi Germany to the United States

Born Heinz Alfred Kissinger in Germany in 1923, he left with his Jewish family for the United States in 1938 as Nazi persecution intensified. He later served in the U.S. Army, studied at Harvard and built an academic career focused on diplomacy and international strategy.

National Security Adviser and Secretary of State

Kissinger became National Security Adviser in 1969 and Secretary of State in 1973. For a period he held both positions simultaneously, concentrating substantial influence over U.S. foreign policy. His tenure included détente with the Soviet Union, diplomacy with China and intensive negotiations in the Middle East.

Vietnam, Cambodia and the Nobel Peace Prize

Kissinger was deeply involved in U.S. policy toward the Vietnam War and the negotiations that produced the 1973 Paris Peace Accords. He shared the Nobel Peace Prize with Lê Đức Thọ, who declined the award. His record remains heavily debated, including over U.S. actions in Cambodia and policies toward countries such as Chile.

Why his legacy remains contested

Supporters have emphasized Kissinger’s strategic diplomacy and role in managing Cold War relationships. Critics have focused on the human consequences of policies he helped shape. The U.S. State Department Office of the Historian documents both his influence and several of the controversies associated with his tenure.

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