CARIBBEAN SEA (June 30, 2023) Sailors and civil service mariners launch a Wave Glider unmanned surface vessel from the fantail of the expeditionary fast transport ship USNS Burlington (T-EPF 10) during UNITAS U.S. Naval Forces Southern Command/U.S. 4th Unmanned Integration Campaign. UNITAS is the world's longest-running maritime exercise. Hosted this year by Colombia, it brings together multinational forces from 20 partner nations, including 26 warships/vessels, three submarines, 25 aircraft (fixed wing/helicopter) and approximately 7,000 people. The exercise trains forces in joint maritime operations that enhance tactical proficiency and increase interoperability with the presence of unmanned air, surface, and submarine systems. (U.S. Navy photo by Chief Mass Communication Specialist Stacy M. Atkinsricks)