Poseidon’s Watchtower Navy Chief Petty Officer Kalee Revilla, left, and Seaman Tiniece Thomas survey Ukibaru Island during exercise Poseidon’s Watchtower in Okinawa, Japan, June 8, 2021. The exercise enhances sailors’ skills in assessing terrain for maritime operations. SHARE: Download: Full Size (0.73 MB) Tags: training, Navy, Poseidon’s Watchtower Credit: Marine Corps Sgt. Hailey Clay VIRIN: 210608-M-LR229-0025C.JPG Photo Gallery