PHILIPPINE SEA (Nov. 21, 2021) A U.S. submarine sails during Annual Exercise (ANNUALEX). ANNUALEX 2021 is a multilateral exercise conducted by elements of the Royal Australian, Royal Canadian, German, Japan Maritime Self-Defense Force and U.S. navies to demonstrate naval inoperability and a joint commitment to a free, open and inclusive Indo-Pacific. (U.S. Navy photo by Mass Communication Specialist Seaman Apprentice Isaiah B. Goessl)