The 5th Pacific Fleet is an Elite Naval Force acting as Michael El Britannia's Naval Force and spends most of the time either patrolling Area 11's Seas or working on supplies in Season 1, the 5th Fleet in Season 2 is transformed into the The 13th Independent Imperial Legion that is an Aerial Fleet with Naval and (in some cases) Submarine capabilities, while the Naval Fleet has independence due to it being Michael's fleet its successor is otherwise given all autonomous rights.
- Michael El Britannia (De Facto Commanding Prince as of R1 and R2)
- Grand Admiral Garm Vier (Supreme Commander as of R2)
- Samael Sol (Michael's Advisor)
- Jesse Waldstein (Honorary Member)