Rogelio A. Ramirez, 21
Ramirez's father came to the U.S. from El Salvador. He had been a member of a local militia during the civil war there and tried to talk his son out of enlisting. But Ramirez was determined, working two years to retire debts and even removing a small gang tattoo from his hand with scissors.
Sources: Times research, Defense Department, iCasualties.org