ROCKET WASH U.S. Army Pfc. Erik Tyson fires an AT-4 anti-tank rocket and stirs up dirt during a live-fire exercise outside Combat Outpost Sangar in Zabul province, Afghanistan, July 1, 2010. Tyson is assigned to Company D, 1st Battalion, 4th Infantry Regiment, U.S. Army Europe, SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 258726-V-ZGW47-819.jpg Photo Gallery