Cover from French military base in Central African Republic

I received cover from Central African Republic, but not sent through CAR postal system. This cover is sent from French military base in CAR. It looks like regular French cover, but if you look at cancellations, you can see unique postal code 0200 HUB ARMEES, reserved for French Army abroad. Code 0200 HUB ARMEES is reserved for land and air units, code 0100 is for vessels, etc.

Thank you Wolfgang for this rare gem!