美国海军及陆战队每每对外用兵,大有以航母挂帅的航母打击群(CSG),小则有以大型两栖攻击舰领衔的远征打击群(ESG)。从这个意义上说,航母和两栖攻击舰俨然成为美军纵横大洋的“中坚”。2008年,美国海军同时开启两大工程,即新一代CVN-21型核动力航母首舰“福特”号(CVN-78)铺设第一条龙骨,而新一代两栖攻击舰(LHA-6)首舰也以24 The US Navy and the Marine Corps often employ foreign troops each year. There are a large number of carrier strike groups (CSGs) that are carrier-based and the other is small-scale expedition strike groups (ESGs) that are led by large amphibious assault ships. In this sense, the aircraft carrier and the amphibious assault ship have become the “backbone” of the U.S. military in the oceans and seas. In 2008, the U.S. Navy also opened two major projects at the same time, laying the first keel for the first generation of the CVN-21 nuclear-powered aircraft carrier CVN-78. The new generation of amphibious assault ships (LHA-6 The first ship also to 24