When the Army and Air Force separated after WWII it was agreed the Army would give up fixed wing aircraft. But that could be changed if the Air Force doesn’t want its orphan.
Actually, the Army had and likely still has fixed-wing combat aircraft. They used the OV-1 Mohawk in early Vietnam and while there is some dispute, I believe that there were some Army pilots on its successor, the OV-10 Bronco (Both are Prop jobs). While the 'O' designation made them observation / recon, the natural inclination to shoot-back had them equipped with a degree of combat fire-power.
Still, the point is correct, the Army has rotary combat only, while the rest of the services use a lot of "hot air"!
Around 2010, Boeing was considering a modernized OV-10 for a proposed USAF tasking for a "Light Attack / Armed Reconnaissance" platform.