B. Air Force

Section: Formed of two or more airmen (also known as an “element” in basic training).

Flight: There are three types of flights: numbered, alpha and functional. They can be made up of individual airmen or sections.

Squadron: Consists of two or more flights. It’s the lowest level of command with a headquarters element and is usually identified by number and function (example – 1st Reconnaissance Squadron). Usually commanded by a lieutenant colonel.

Group: Made up of two or more squadrons whose functions are similar to what the group is named (example – Medical Group). They are usually commanded by a colonel and mostly take on the number of the wing to which they’re assigned.

Wing: Two or more groups form wings. There are two types — composite and objective — and there’s only one wing assigned to a base. Usually they are commanded by a brigadier general.