Kerry grew up as a military brat in Massachusetts and Washington, D.C. before attending boarding school in Massachusetts and New Hampshire. In 1966, after graduating from Yale University, Kerry enlisted in the United States Naval Reserve, ultimately attaining the rank of lieutenant. From 1968 to 1969, during the Vietnam War, he served an abbreviated four-month tour of duty in South Vietnam. While serving as the commanding officer of a Swift boat, Kerry sustained three wounds in combat with the Viet Cong, for which he earned three Purple Heart Medals. Kerry was awarded the Silver Star Medal and the Bronze Star Medal for valorous conduct in separate military engagements. After completing his active military service, Kerry returned to the United States and became an outspoken opponent of the Vietnam War. He gained national recognition as an anti-war activist, serving as a spokesperson for the Vietnam Veterans Against the War organization. Kerry testified in the Fulbright Hearings before the Senate Committee on Foreign Relations, where he described the United States government's policy in Vietnam as the cause of war crimes.