A small number of the Republic ARC-170 Starfighters are crewed by elite Clone Troopers, trained to go deep into enemy territory on the most dangerous scouting missions and raids. These squads undergo advanced "aggressive reconnaissance" training taught by Advanced Recon Commandos to equip them with the skills necessary to survive the varied and treacherous mission profiles to which they are assigned. The ARC-170 Elite Squads served with distinction during the Outer Rim sieges, providing crucial intelligence and support during campaigns on the major Separatist home worlds.