MEDITERRANEAN SEA (June 23, 2017) Fire Controlman 1st Class Kristina Lehman conducts maintenance on a Phalanx 20mm close-in weapons system (CIWS) aboard the aircraft carrier USS George H.W. Bush (CVN 77) (GHWB).
GHWB, part of the George H.W. Bush Carrier Strike Group (GHWBCSG), is conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe and Africa. (U.S. Navy photo by Mass Communication Specialist 3rd Class Matt Matlage/Released). Original public domain image from Flickr