Destroyer's Gun The USS Gonzalez conducts a live-fire exercise using an MK 45 5-inch gun in the Indian Ocean, Feb. 5, 2015. The guided-missile destroyer is supporting maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of operations. U.S. Navy photo by Petty Officer 3rd Class Pasquale Sena SHARE: Download: Full Size (0.84 MB) Tags: USS Gonzalez , Live-Fire Exercise, INDIAN OCEAN Credit: Petty Officer 3rd Class Pasquale Sena VIRIN: 160205-N-LP538-219.JPG Photo Gallery