Ouroboro
The Ouroboro are a fleet of spacecrafts used by the Karkhala Space Legion. These spacecrafts are named after the ouroboros, a reptile species found around the Edge Of The Yonderverse.
Ouroboros by Mochi
The Legion uses this formation to intimidate its opponents. They hire spacecrafts from others to hide their identities and surround competitors to intimidate them.
When opposing Legions "offend" the Karkhala Space Legion in any way, the Enforcers will track down the opposing Head Legional and "intimidate" them, by circling them in their spacecrafts.
In response to the prompt Write about a military formation based on a particular animal and the advantages it offers in combat.
Sounds like the Oanie.
The oanie are such wimps, they won't even brutally destroy their competitors D: