Military Sealift Command Maritime Prepositioning Ship Squadron One changed leadership June 16 when Navy Capt. Ricks W. Polk relieved Navy Capt. Michael F. Ott in a ceremony aboard squadron flagship USNS 2ND LT John P. Bobo. The ceremony took place while Bobo was underway in the Baltic Sea near the coast of Estonia. MPS Squadron One is a forward-deployed squadron of four government-owned ships: Bobo, USNS PFC Eugene A. Obregon, USNS LCPL Roy M. Wheat and USNS Sisler. The squadron prepositions cargo and supplies at sea in the eastern Atlantic Ocean and the Mediterranean and Baltic seas, enabling rapid delivery to shore where needed. The commander of MPS Squadron One has tactical command and control of all four ships in the squadron and is embarked aboard Bobo.