Osprey collection (merged thread)

[Ken White]

I see no real reason for why USMC fixed wing aviation should exist at all.

To show the Air force how to fly CAS.

Seriously, because it can and due to a difference in traditions. In the US, all services own and control most of their own aircraft. Think of it as a Federal system as opposed to a centralized state. It is mildly inefficient, it is not at all ineffective.