军工企业是美国军事技术和武器装备发展的“摇篮”。为了拥有和保持军事技术、装备上的优势地位,美国国会和国防部一直密切关注国防工业的发展,宏观上制定政策引导其调整、改革,微观上插手军工企业的重组、兼并。20世纪80年代和90年代曾出现过两轮并购浪潮,形成了洛克希德·马丁公司和波音公司两强对峙的格局。进入21世纪,正当人们普遍认为美国国防工业的两强格局将保持较长时间,很难再出现 Military enterprises are the cradle of the development of U.S. military technology and weapons and equipment. In order to own and maintain the superiority of military technology and equipment, the United States Congress and the Department of Defense have been paying close attention to the development of the national defense industry. They have formulated policies to guide their readjustment and reform macroscopically and to restructure and merge the military enterprises microscopically. Two rounds of mergers and acquisitions occurred in the 1980s and 1990s, forming a pattern of confrontation between Lockheed Martin and Boeing. In the 21st century, just as it is generally believed that the pattern of the two national defense industries in the United States will remain relatively long, it is hard to come back again