UAVs can be used to transport supplies and medicines urgently needed from nearby material and drug warehouses to army outposts, and UAVs can be used to travel from inland support bases to border islands, or from large islands and reefs with support capabilities to surrounding small islands. The islands and reefs transport weapons and ammunition, equipment, fuel supplies, medicines, blood and other materials. And in the emergency rescue and disaster relief tasks, the "Golden 72 Hours" can be used to deliver medicines, rescue equipment and other equipment to the disaster area.