Forward arming and refuelling point
A forward arming and refuelling point (FARP) or forward area refuelling point is a NATO term for an area where aircraft (typically helicopters) can be refuelled and re-armed at a distance closer to their area of operations than their main operating base. This reduced distance allows faster turnaround time during sustained operations.
Source: Wikipedia — Forward arming and refuelling point (CC BY-SA 4.0)