Preparing to Fire Navy Petty Officer 3rd Class Nathaniel Carlyle, assigned to the guided missile destroyer USS Porter, prepares to fire the ship’s five-inch cannon during a live-fire exercise in support of Exercise Formidable Shield 2023 in the Atlantic Ocean, May 13, 2023. Formidable Shield is a biennial exercise involving a series of live-fire events against subsonic, supersonic, and ballistic targets. SHARE: Download: Full Size (2.97 MB) Tags: Navy, formidable shield, ukraine response Credit: Navy Petty Officer 2nd Class Sawyer Connally VIRIN: 230513-N-NQ285-1144A.JPG Photo Gallery