U.S. Marines and Iraqi army soldiers advance up a dirt road as they search for weapons caches and materials used to make improvised explosive devices during a patrol along the Euphrates River in Fallujah, Iraq, on March 17, 2006. Marines from 3rd Squad, 2nd Platoon, Echo Company, 2nd Battalion, 6th Marine Regiment, Regimental Combat Team 5 and Iraqi soldiers are from the 2nd Battalion, 4th Brigade, 1st Division are conducting the joint patrol.