THERMAL IMAGER Navy Petty Officer 2nd Class Christian Karsemeyer uses a firefighting thermal imager during a fire drill aboard the amphibious assault ship USS Boxer in the Pacific Ocean, May 7, 2015. The Boxer is conducting routine training exercises and maintenance to prepare for its upcoming deployment. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 568688-D-HIX22-223.jpg Photo Gallery