Marines sit inside a CH-53E Super Stallion helicopter before helicopter raid training as part of a weapons and tactics course for instructors on Yuma Proving Ground, Ariz., April 9, 2014. The training teaches the basics of Marine Corps aviation and provides strategy, tactics and execution experience. The Marines are assigned to 2nd Marine Division's India Company, 3rd Battalion, 6th Marine Regiment. Marines sit inside a CH-53E Super Stallion helicopter before helicopter raid training as part of a weapons and tactics course for instructors on Yuma Proving Ground, Ariz., April 9, 2014. The training teaches the basics of Marine Corps aviation and provides strategy, tactics and execution experience. The Marines are assigned to 2nd Marine Division's India Company, 3rd Battalion, 6th Marine Regiment. SHARE: Download: Full Size (1.13 MB) Tags: Photo Essays Credit: VIRIN: 274637-Y-YGW76-524.jpg Photo Gallery