200224-A-PR445-1172 JUBAIL, Kingdom of Saudi Arabia (Feb. 24, 2020) Sailors assigned to Commander Task Unit 52.3.1 conduct launch and recovery training with a Mark 18 Mod 1 Swordfish unmanned underwater vehicle (UUV) as part of exercise Nautical Defender 20 (ND) in Jubail, Saudi Arabia. ND is a bilateral maritime exercise between the U.S. Navy and the Royal Saudi Naval Forces designed to build and sustain war-fighting capabilities, support long-term regional security and enhance military-to-military interoperability with the U.S. and Kingdom of Saudi Arabia. (U.S. Army photo by Spc. Duong Le/Released)