Science Advisor to the President War II by President Franklin Delano Roosevelt. Vannevar Bush chaired this office through Roosevelt's death in 1945, and continued under Roosevelt's successor Harry S. Truman until 1951. After the war, President Harry S. Truman replaced the OSRD with the Science Advisory Committee in 1951. The office was moved to the White House on November 21, 1957, by President Dwight D. Eisenhower to provide advice and recommendation in response to the Space Race started by the USSR's launch of the first artificial Earth satellite, Sputnik 1. President Richard M. Nixon eliminated the PSAC in 1973, rather than appointing a replacement for
President of Vietnam Vice President, Prime Minister, Ministers and other officials with the consent of the National Assembly. The President is furthermore the Supreme Commander-in-chief of the Vietnam People's Armed Forces, Chairman of the Council for Defense and Security. Moreover, Member of Political Bureau, Standing Member of the Central Military Commission and the Central Police Party Committee. Since September 2011, the President is also the Head of the Central Steering Committee for Judicial Reform. The tenure of the President is five years, and a president can only serve three terms. If the President becomes unable to discharge duties of office, the Vice President