Well, it doesn't need to even be near the hot zones. C17s or Hercules can land at regional airports/ dirt strips, going nowhere near the terminals, the materiel offloaded onto a remote section of the ramp. The locals could then load it onto trucks and have it brought forward. The aircraft could be gone before the locals even arrive.
Better yet, why not just use that airdrop capability that presumably all aircraft with tail ramps have?
Incidents like this make me wonder whether, if we still had an Empire, we would look after these Brits, and the locals of smaller countries better in-situ and not feel the need to bring them all back home. The British chiefs need to keep in mind that in order to help others you must help yourself first. A sick doctor ain't gonna help no-one.