Controversy over the deployment by the US Marines of 12 tilt-rotor V-22 Osprey aircraft to the Futenma Air Base on Okinawa has contributed to the alliance’s decay. The hybrid aircraft – which combine a helicopter’s ability to take off and land vertically with the range, loading capacity, fuel efficiency, and speed of a turboprop airplane – are instrumental to deter possible Chinese or North Korean aggression in the area.
关于美国海军陆战队往冲绳县普天间空军基地部署12架V-22鱼鹰式倾转旋翼飞机的争议加剧了该联盟的衰败。这种混合式飞机结合了直升机的垂直起降能力以及涡轮螺旋桨飞机的航程、运载量、燃油效率及速度，被用来协助阻止中国或朝鲜可能对该地区发起的进攻。