Lance Cpl. Lonnie Chitwood prepares to push a round into the barrel of a M-198 155 mm howitzer during a live fire exercise for Exercise Tandem Thrust 2001 at Shoalwater Bay Training Area, Queensland, Australia, on May 26, 2001. Tandem Thrust is a combined military training exercise involving more than 18,000 U.S., Australian, and Canadian personnel who are training in crisis action planning and execution of contingency response operations. Chitwood is attached to the 1st Battalion, 12th Marines of Kaneohe Bay, Hawaii.