John Kerry volunteered for service in the Navy during the Vietnam War, where he served as skipper of a swift boat that patrolled the Mekong Delta.
Lt. Kerry was awarded the Silver Star, the Bronze Star with Combat V, three Purple Hearts, the Presidential Unit Citation for Extraordinary Heroism, the National Defense Service Medal, the Vietnam Service Medal, three Republic of Vietnam Campaign Medals, and the Combat Action Ribbon.
He is a cofounder of the Vietnam Veterans of America and a life member of the Veterans of Foreign Wars.
In the years since Kerry returned from Vietnam, he has stood up for veterans and the issues of importance to veterans, like mandatory funding for VA healthcare, and concurrent receipt. John Kerry has made it his life's work to remind politicians that the first definition of patriotism is how a grateful nation treats its veterans.
February 10, 1968: John Kerry requests duty in Vietnam. He lists his first preference for a position as an officer in charge of a Swift boat, his second as an officer in a patrol boat river squadron.
June 16, 1968: John Kerry is promoted to lieutenant (junior grade).
November 17, 1968: Kerry reports for duty in Cam Ranh Bay, South Vietnam, as the officer in charge of PCF-44. He takes part in Operation Swift Raider, involving incursions into enemy strongholds around inlets and canals along the South Vietnam coast in attempts to sever enemy supply lines and communication, as well as transport troops in reconnaissance missions.
December 2, 1968: John Kerry is wounded in action and is awarded his first Purple Heart.
February 20, 1969: Kerry is wounded in action, and receives his second Purple Heart.
February 28, 1969: Engagement for which Kerry received Silver Star.
March 13, 1969: John Kerry pulls a Green Beret back into his boat under intense fire, and is awarded the Bronze Star with Combat V. In doing so, Kerry is again wounded in action, and received his third Purple Heart Citation.
March 27, 1969: Kerry leaves Vietnam after sustaining three injuries.
April, 11 1969: John Kerry reports for duty at Military Sea Transportation Service, Atlantic. He is based in Brooklyn, New York.
January 1, 1970: Kerry is promoted from Lieutenant (junior grade) to Lieutenant.
July 1, 1972: Kerry is transferred to Standby Reserve.
February 16, 1978: John Kerry is honorably discharged.
http://www.johnkerry.com/communities/veterans/service.html