Private Migliaccio was a member of the 15th Infantry Regiment, 3rd Infantry Division. He was seriously wounded by the enemy in Korea on 15 May 1953 and died of those wounds the following day.

Migliaccio was awarded the Purple Heart, the Combat Infantryman's Badge, the Korean Service Medal, the United Nations Service Medal, the National Defense Service Medal, the Korean Presidential Unit Citation and the Republic of Korea War Service Medal.