What is the level of command below the Numbered Air Force that has distinct missions and may contain several squadrons?

The level of command below the Numbered Air Force that has distinct missions and may contain several squadrons is the wing. A wing typically serves as a major component of the Air Force and is usually responsible for leading a specific type of operation or mission. It is composed of multiple squadrons, each focusing on different functions that contribute to the wing's overall objectives.

Additionally, a wing can have various types of support units, such as maintenance or logistics, under its command, further enhancing its capability to fulfill its mission requirements. This organizational structure allows the wing to operate more effectively by bringing together various resources and personnel needed for mission success.

In contrast, a squadron is a smaller unit within a wing, and while it may have its own specific mission, it does not encompass multiple squadrons. A group, while also a level of command within the wing structure, generally contains multiple squadrons as well but is not as foundational as wings in terms of command hierarchy. Lastly, a section is an even smaller organizational unit and does not operate independently at the level of a wing or group.