U.S. Army Pfc. Derek Hines, left, a rifleman from Santee,

U.S. Army Pfc. Derek Hines, left, a rifleman from Santee, Calif., assigned to Company B, 2nd Battalion, 23rd Infantry Regiment, 4th Brigade, 2nd Infantry Division, from Joint Base Lewis McCord, Wash., empties grease traps surrounding the camp kitchen at Camp Sam Hill in Shoalwater Bay Training Area during Talisman Sabre 2011. Talisman Sabre 2011 is a biennial training event aimed at improving and validating the Australian Defence Force and the United States combat readiness and interoperability as a joint task force.