Builder Constructionman Ida Grigson paints bearers on a rebuilt bridge during Exercise Tandem Thrust 2001. Builder Constructionman Ida Grigson, from Naval Mobile Construction Battalion 1, paints bearers on a rebuilt bridge during Exercise Tandem Thrust 2001 in Shoalwater Bay Training Area, Queensland, Australia, on May 6, 2001. Grigson is deployed for Tandem Thrust which 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. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 325176-Z-WNT61-134.jpg Photo Gallery