181121-N-OA516-0010 ATLANTIC OCEAN (Nov. 21, 2018) Ensign Erin Mannix, from Waynesville, Ohio, checks bearings using an alidade on the bridge of the Wasp-class amphibious assault ship USS Iwo Jima (LHD 7), Nov. 21, 2018. Iwo Jima is currently underway after participating in Trident Juncture 2018 which is a NATO-led exercise designed to certify NATO response forces and develop interoperability among participating NATO Allied and partner nations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Kevin Leitner/Released)