>>12227121The Airforce DOES say that. Official American doctrine is that all fixed wing aircraft are Air Force, even if the Army want them. That's why the Army spent so much money developing helicopters as CAS and logistic platforms.
The Airforce just decided they wanted to have their cake and eat it too by keeping X-37B and now Starship from the Space Force. Doctrine SHOULD say that anything above the Karman Line belongs to the Space Force, but that hasn't been established yet and the Air Force is clearly pushing against that.
Remember, every single branch of the US military has had it's own space program at some point, including the Navy, and often competing (ie Vanguard vs Redstone)