The Battleship Squadron is the foundation of TOG Naval Doctrine much in the same way that the Legion is the foundation of TOG Army land formations. The Battleship Squadron has been adopted by the Renegade Legions Navy, by a significant portion of the Commonwealth Navy and (to a lesser degree) by the Naram and the KessRith Navy.
- 1 Battleship (BB) commanded by a Navarchos (OF-5/O-6)
- 1 Cruiser (CA) commanded by a Navarchos (OF-5/O-6)
- 2 Frigates (FF), each commanded by a Plularchos (OF-4.1/O-5)
- 4 Destroyers (DD), each commanded by a Plularchos (OF-4.1/O-5)
- 2 Escorts/Patrol Ships (DE or PF), each commanded by a Plularchos, J.G. (OF-4/O-5)
A Battleship Squadron also generally includes approximately a Wing of fighters (the totality of the warship fighter compliment) and between a Cohort and an Auxilia of Marines (the totality of the warship Marines compliment). The fighter wing is often under the command of a Commodore (OF-6/O-7) and the ranking Marine is most commonly a Legatus (OF-4/O-5).
Two or more Battleship Squadrons (typically 2-5) form a Battleship Group.
Squadrons in TOG and the Republican Navy are commonly named for their flagship (BB or BCV) and carry the designation BBS or CVS depending on their status as a Battleship Squadron or a Carrier Squadron. For example, the IWS Palestinium Battleship’s squadron would be known as the Palestinium BBS. The numerical designator assigned to a Squadron is based on the Hull Registry number of the BB, often along with a broad descriptor, such as "Pursuit Squadron"; this is for the convenience of Flag officers who often have to keep track of hundreds of squadrons. In reserve squadrons that frequently change flagships or are closely associated with one world, the name of the operating area (world/system/province/prefecture/district) is used, but always with a numerical designator even if it is the only squadron in that operational area (i.e. the 1st Thapsus BBS).
Commonwealth Royal Navy Squadrons generally follow the same pattern, but the assigned squadron number of older squadrons is not based on the BB's registry, remaining the same even if the BB assigned to the squadron is replaced (effectively renaming the squadron, but not the squadron number). This number was based on a complicated formula which describes the origin, nature and function of the squadron, but this practice has been abandoned since it was realized that it helped TOG opponents as much as it did Royal Navy planners.