Answer:

blockade

AnswerCrossword Clue
BLOCKADEMilitary embargo
BLOCKADEReason for the airlift.
BLOCKADEStrategic barrier
BLOCKADEIt may get a runaround
BLOCKADESea wall?
BLOCKADESupply line cutter
BLOCKADENaval tactic