U.S. Navy Lt. Cmdr. Robert Trentacosta, from San Diego, uses an ultrasound visualization system to teach local medical practitioners at the Belau National Hospital in Ngerekebesang, Palau, as part of Pacific Partnership 2024-1, Dec. 29, 2023. Pacific Partnership, now in its 19th iteration, is the largest multinational humanitarian assistance and disaster relief preparedness mission conducted in the Indo-Pacific and works to enhance regional interoperability and disaster response capabilities, increase security stability in the region, and foster new and enduring friendships. (U.S. Navy photo by Hospital Corpsman 2nd Class Jacob Gay)