Claim: The Illinois Wing Civil Air Patrol, an official auxiliary of the United States Air Force, is made up of five flight groups.
Evidence: The Civil Air Patrol (CAP) is a congressionally chartered, federally supported non-profit corporation that serves as the official auxiliary of the United States Air Force (USAF). The Illinois Wing of the Civil Air Patrol is composed of 23 squadrons which are distributed among five Groups across the state of Illinois. 
28 (+ 5 Groups) The Civil Air Patrol (CAP) is a congressionally chartered, federally supported non-profit corporation that serves as the official auxiliary of the United States Air Force (USAF).