170731-N-KV911-0046 PEARL HARBOR, Hawaii (July 31, 2017) Capt. Rick Seif, commander of Submarine Squadron 1, greets Cmdr. Toru Tsuchiya, commanding officer of the Japan Maritime Self-Defense Force submarine JS Zuiryu (SS 505) upon the boat's arrival at Joint Base Pearl Harbor-Hickam. (U.S. Navy photo by Mass Communication Specialist 2nd Class Shaun Griffin/Released)