Why we serve: U.S. Army Sgt. Lydia Johnston
Sgt. Lydia Johnston, Headquarters and Headquarters Troop, 2nd Squadron, 17th Cavalry Regiment medic demonstrates her technical proficiency every day when providing medical care to her unit mates at Forward Operating Base Fenty, Afghanistan, on Dec. 21, 2012. (U.S. Army photo by Sgt. Duncan Brennan, 101st CAB public affairs)

Page last updated Sat January 12th, 2013 at 05:23