Heinz Alfred "Henry" Kissinger ( /ˈkɪsɪndʒər/; born May 27, 1923) is a German-born American academic, political scientist, diplomat, and businessman. He is a recipient of the Nobel Peace Prize. He served as National Security Advisor and later concurrently as Secretary of State in the administrations of Presidents Richard Nixon and Gerald Ford. After his term, his opinion was still sought by many subsequent presidents and many world leaders.