250214-N-OC941-1001 JACKSONVILLE, Fla. (February 12, 2025) - U.S. Naval Forces Southern Command/U.S. 4th Fleet Commander Rear Adm. Carlos Sardiello, center, poses with the combined/joint planning team for a group photo at the UNITAS 2025 Initial Planning Conference in Jacksonville, Fla., February 12. This year's UNITAS, the longest-running multinational maritime exercise in the world, will combine the efforts of Allies and Partners from across the globe and serve as the introduction to Navy 250 - the U.S. Navy's year-long birthday celebration. U.S. Naval Forces Southern Command/U.S. 4th Fleet is the maritime component of U.S. Southern Command and the trusted maritime partner for Caribbean, Central, and South American maritime forces leading to improved unity, security, and stability.