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U.S. Fourth Fleet
U.S. Fourth Fleet (C4F) is the numbered fleet assigned to U.S. Naval Forces Southern Command (USSOUTHCOM) to execute their mission in the U.S. Southern Command area of focus. Fourth Fleet conducts several exercises and deployments in the region throughout the year, including: Continuing Promise, a humanitarian assistance deployment which provides healthcare, civic assistance, training and conducts community relations with nations in the region; Southern Partnership Station, a deployment utilizing a variety of platforms to provide training and information-sharing; Southern Seas, an annual deployment focusing on partnership building and conducts a variety of Theatre Security Cooperation events to ensure maritime security in the region; UNITAS, the longest-running maritime exercise, conducted annually to promote interoperability among partner nations throughout the region; and PANAMAX, the largest multi-national maritime exercise, conducted annually and focuses on interoperability of an international force to protect the Panama Canal.