Sgt. Thomas R. Macpherson, 26, of Long Beach, Calif., was a team leader assigned to Company D, 2nd Battalion, 75th Ranger Regiment at Joint Base Lewis-McChord.
He previously served one deployment to Iraq and this was his fourth deployment to Afghanistan.
Officials said he was mortally wounded by small arms fire as he led an assault Friday in Ghazni Province, Afghanistan.
He enlisted in the Army in May 2007. In 2010 he was assigned to Company D where he served as a fire team leader.
His military education includes the Basic Airborne Course, Ranger Assessment and Selection Program, U.S. Army Ranger School, Infantry Mortar Leader's Course, Survival, Evasion, Resistance and Escape Course and the Warrior Leader Course.
His awards and decorations include the Ranger Tab, the Combat Infantryman's Badge, the Expert Infantryman's Badge, the Parachutist Badge, and the U.S. Army Expert Rifle Marksmanship Qualification Badge.
MacPherson has also been awarded the Bronze Star Medal with Valor, Army Commendation Medal, Army Achievement Medal, Army Good Conduct Medal, National Defense Service Medal, Afghanistan Campaign Medal with three Campaign Stars, Iraq Campaign Medal with Campaign Star, Global War on Terrorism Service Medal, Army Service Ribbon, Overseas Service Ribbon, and the NATO Medal.
He was posthumously awarded the Bronze Star Medal, Meritorious Service and Purple Heart.
MacPherson is survived by his wife, Claudia MacPherson, and their son, Brayden, of Tacoma, and his parents, Troy and Diona MacPherson of Long Beach, Calif.