Are quite a few Army bases and joint bases that have runways they could operate from.
Warthog doesn't require much runway.
Minimum Take Off Distance -�945.00 metres. - 3,100.36 feet
Minimum Landing Distance -610.00 metres. - 2,001.29 feets�
http://www.aircraftcompare.com/helicopter-airplane/A-10-Warthog/8