自反恐以来,美国在军事、国安方面作出了重大机构调整,新成立了国安部、北方司令部和新联合司令部,这样重大的军事机构调整和改组在美国历史上是极为少见的.这反映美国军事战略正在进行重大转移。成立北方司令部今年4月17日,美国防部长拉姆斯非尔德宣布,根据新修订的“联合司令部计划”,将对美军的九大联合司令部进行改组,成立专门负责国土安全的“北 Since the anti-terrorism campaign, the United States has made major institutional adjustments in the areas of military and national security and has newly established the National Security Ministry, the North Command and the United Coalition Command. Such major military restructuring and reorganization are extremely rare in the history of the United States. The U.S. military strategy is undergoing a major shift. On April 17 this year, U.S. Defense Secretary Rumsfeld announced that under the newly revised “Joint Command Plan,” the nine U.S. Joint Command Commissions will be reorganized to set up a special unit responsible for homeland security "north