U.S. and NATO troops breach a hardened facility during a combat training course on Ramstein Air Base, Germany, May 30, 2015. U.S. and NATO troops breach a hardened facility during a combat training course on Ramstein Air Base, Germany, May 30, 2015. SHARE: Download: Full Size (2.1 MB) Tags: photo essays Credit: VIRIN: 062345-L-PVM45-536.jpg Photo Gallery