HELICOPTER DRILL Marines conduct immediate action drills during Exercise Lava Viper on Pohakuloa Training Area, Hawaii, Jan. 20, 2012. The Marines are assigned to Gulf Company, 2nd Battalion, 3rd Marine Regiment. Lava Viper is a battalion-level, combined-arms training exercise to better prepare Marines for upcoming deployments. SHARE: Download: Full Size (103.36593 MB) Tags: week in photos, week in photos Credit: VIRIN: 179772-K-ARS09-176.jpg Photo Gallery