A squadron of Peregrine-class attack fighters.
A squadron is a small grouping of starships or aircraft.
In the Dominion a squadron was a group of three to six small attack craft such as Jem'Hadar attack ships and commanded by a Vorta Vara'thoran.
Starfleet sometimes broke its larger attack wings into squadrons of two to four starships.
Starfleet Starfighter Corps had its squadron sized units based around a grouping of twelve fighters. The officer in command was referred to by the title, squadron leader.
SFC Wings: 101st Fighter Wing • 260th Fighter Wing
SFC Squadrons: Banshee • Forge • Galloping Greens • Haven (11th) • Overcome (99th) • Puma (42nd) • Roulette • Tullanic
Flight • Flight element