本文是美国空军航天司令部司令约翰·海顿上将在2015年3月17日举行的美国众议院军事委员会战略力量小组委员会“确保可靠的空间进入能力”听证会上的证词。航天能力在国家慑止挑战上发挥着至关重要的作用,也是民用活动和军事行动必不可少的组成部分。航天发射本身已成为一项关键的国家能力。当前我们面临的挑战是,在挑战性不断增大的空间域内确保在选定的时间 This article is testimony by the Commander of the U.S. Air Force Space Command, Lieutenant, General John Hayden, on March 17, 2015, of the US House of Representatives Military Council Strategic Forces Subcommittee on “Ensuring Reliable Access to Space.” Aerospace capabilities play a crucial role in deterring States from challenges and are also an integral part of civilian activities and military operations. Space launch itself has become a key national capability. The challenge we face now is to ensure that at selected times in the challenging and challenging space domain