The Immediate Support Armada (commonly referred to as ISA) is the sole naval force in the Systems Alliance Terra Corps, acting as an auxiliary naval force rather than a primary one. The ISA makes extensive use of cruisers and destroyers. The naval unit also utilizes several dozen starfighters and interceptors, Wasps being the most prominent among the ISA. The ISA is a fairly small naval force and is mostly used solely for defensive and support operations but the leadership of the force who uses superior tactics command their fleets well.