[GunboatDiplomat]

The Army is allowed to do fixed wing aviation, but only with a dry weight of 5000 lbs. or less.

[hga]

https://en.wikipedia.org/wiki/Key_West_Agreement most often called the Treaty of Key West in my readings.

[iofj]

I bet that will turn out to be a massive tactical misjudgment by the air force once we really start switching to drones, at which point 5000lbs or less is no longer a limitation at all.