众所周知,美国是空间大国,而且是军事空间大国,在整个空间系统中,军用系统占有重要的地位和比例。美国的空间战略是用军事空间活动保护本国和盟国利益,“维护空间自由,以利军用和民用,增强国家安全和人民康乐。”美国军事空间计划包括“加强部队力量”、“空间保障”、“空间控制”和“武力应用”4个方面。“加强部队力量”意思是用空间系统支 As we all know, the United States is a space power and a large military space power. In the entire space system, the military system occupies an important position and proportion. The U.S. space strategy uses military space activities to protect the interests of its own allies and its allies, “safeguarding freedom of space, facilitating military and civilian use, and enhancing national security and people’s well-being.” U.S. military space programs include “strengthening the forces,” “space security, ”Space control“ and ”force application“ four aspects. The phrase ”strengthening forces" means using space systems