U.S. Marines fire a 155mm projectile from their M198 Howitzer. U.S. Marines from the 3rd Marine Expeditionary Brigade fire a 155mm projectile from their M198 Howitzer during a combined arms live-fire exercise as part of Exercise Talisman Sabre 2007 in Shoalwater Bay, Australia, on July 1, 2007. The biennial exercise is designed to train Australian and U.S. forces in planning and conducting combined task force operations that improve combat readiness and interoperability. SHARE: Download: Full Size (0.04 MB) Tags: military services, news photos, other subjects, lead photos, dod organizations, marine corps Credit: VIRIN: 704815-L-BZU07-695.jpg Photo Gallery