Helicoptera

The Armed Republic of Helicoptera
Helicoptera is a large airborne nation populated entirely by sentient helicopters and rotary drones. The nation itself is effectively a flying island, hoisted through the skies by super-massive Chinook utility helicopters. It's citizenry are divided by their make and model, with varying degrees of military and societal obligations dictated by their roles as Attack, Observation, Utility, etc. Helicoptera is the devoted eternal enemy of the United Skeletons.