Pfc. Christian Zelaya pushes a cleaning rod down the barrel of a towed howitzer.
Pfc. Christian Zelaya pushes a cleaning rod down the barrel of a towed howitzer during routine maintenance at Forward Operations Base Rustimya, Iraq, on Jan. 23, 2006. Zelaya is attached to the Army's Bravo Company, 4th Brigade, 320th Field Artillery Regiment, 101st Airborne Division.