During his tenure as Ambassador to Vietnam, Donal Read Heath advocated and carried out American policy under a United States Secretary of State for what president?   
Donald R. Heath: Donald Read Heath (August 12, 1894 – October 15, 1981) was a member of the United States Foreign Service for more than four decades including service as the Ambassador to Cambodia (1950–1954), Laos (1950–1954), Vietnam (1952–1955), Lebanon (1955–1957) and Saudi Arabia (1958–1961). Donald R. Heath:  During his tenure as Ambassador to Vietnam, Heath advocated and carried out American policy under Secretary of State John Foster Dulles that helped set the stage for American military involvement.
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