Petty Officer 3rd Class Victor Guerrero watches as a 5 ton truck is backed onto a Landing Craft Utility as the 31st Marine Expeditionary Unit back-loads during Exercise Tandem Thrust 2001 May 25, 2001, at Shoalwater Bay Training Area, Queensland, Australia. Guerrero is deployed as part of Beachmaster Unit 1, Detachment WESTPAC, to participate in the 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.