MAYPORT, Fla. (Sept. 3, 2021) Rear Adm. Don Gabrielson, center, observes the passing of the flag from Command Master Chief (ret.) Mac Ellis, right, to U.S. Fourth Fleet Command Master Chief Robert Florentino, left, during a change of command ceremony for U.S. Naval Forces Southern Command/ U.S. Fourth Fleet (COMUSNAVSO), Sept. 3, 2021. During the ceremony, Gabrielson was relieved of command by Rear Adm. James Aiken. U.S. Naval Forces Southern Command/U.S. 4th Fleet supports U.S. Southern Command’s joint and combined military operations by employing maritime forces in cooperative maritime security operations to maintain access, enhance interoperability, and build enduring partnerships in order to enhance regional security and promote peace, stability and prosperity in the Caribbean, Central and South American region. (U.S. Navy photo by Mass Communication Specialist 2nd Class Hunter S. Harwell/Released)