U.S. Marine Corps Cpl. Shane McCarthy pulls the lanyard of an M777A2 lightweight 155 mm howitzer to fire a projectile in support of an air assault course on Bradshaw Field Training Area, Northern Territory, Australia, June 29, 2015. U.S. Marine Corps Cpl. Shane McCarthy pulls the lanyard of an M777A2 lightweight 155 mm howitzer to fire a projectile in support of an air assault course on Bradshaw Field Training Area, Northern Territory, Australia, June 29, 2015. SHARE: Download: Full Size (1.459051 MB) Tags: Photo Essays Credit: VIRIN: 530036-A-RJX27-361.jpg Photo Gallery