ohn Sheldon Doud Eisenhower (August 3, 1922 – December 21, 2013) was a United States Army officer, diplomat, and military historian. He was a son of President Dwight D. Eisenhower and First Lady Mamie Eisenhower. His military career spanned from before, during, and after his father's presidency, and he left active duty in 1963 and then retired in 1974. From 1969 to 1971, Eisenhower served as United States Ambassador to Belgium during the administration of President Richard Nixon, who was previously his father's vice president. Eisenhower was born on August 3, 1922 in Denver, Colorado to future U.S. President and United States Army General of the Army Dwight D. Eisenhower and his wife, Mamie; he was their second child. Their elder son, Doud, known affectionately as "Icky", died in 1921, at age three, after contracting scarlet fever. Eisenhower, like his father, attended the United States Military Academy, graduating on June 6, 1944, the day of the Normandy landings, which his father was commanding. Eisenhower served in the U.S. Army during World War II and the Korean War, remaining on active duty until 1963; then serving in the U.S. Army Reserve until retirement in 1975 – attaining the rank of brigadier general. A decorated soldier, Eisenhower found his World War II military career thwarted by fears for his safety and concern from the top brass that his death or capture would be a distraction to his father, the Supreme Allied Commander. During World War II, he was assigned to intelligence and administrative duties. This issue arose again in 1952 when Major Eisenhower was assigned to fight in a combat unit in Korea while his father ran for president. But unlike World War II, John was able to see combat in Korea. After serving combat with an infantry battalion, he was reassigned to the 3rd Division headquarters. During his father's presidency, John Eisenhower served as Assistant Staff Secretary in the White House, on the Army's General Staff, and in the White House as assistant to General Andrew Goodpaster. In the administration of President Richard Nixon, who had been his father's vice president, he served as U.S. Ambassador to Belgium from 1969 to 1971. In 1972, President Nixon appointed Eisenhower Chairman of the Interagency Classification Review Committee. In 1975, he served President Gerald Ford as chairman of the President's Advisory Committee on Refugees.