How many main branches are there in the RAF?

In the Royal Air Force, the primary distinction exists between two main branches: the Regular and the Reserve forces. The Regular branch comprises full-time personnel who serve as the backbone of the RAF, while the Reserve branch includes part-time service members who can be called upon as needed to support various operations and augment the Regular forces.

The other choices introduce additional components such as Cadets, Auxiliary, and Civilian personnel. However, while these groups are associated with the RAF and play important roles, they do not constitute main branches of the force in the context of official military structure. Cadets, for example, are part of youth programs aimed at fostering interest in aviation and military service, but they do not serve as a formal branch like Regular and Reserve forces. The Auxiliary categorized historically refers to volunteer units that have varied in function over time, but they are not considered one of the primary branches today.

Thus, the identification of Regular and Reserve as the main branches aligns with the current organizational structure of the RAF, emphasizing the core operational and support roles essential to its mission.