冷战开始后的几十年间,美国空军的战机一直处于高度戒备状态,随时准备保卫美国免受苏联轰炸机的攻击。在北美地区空军雷达站网的引导下,美国飞行员们能够在几分钟内驾机起飞拦截接近美国领空的红色战机。在最危急的时刻,为了防止美国受到苏联轰炸机的攻击,美国空军曾经装备了数以千计的带有核弹头的防空武器。 In the decades since the beginning of the Cold War, the U.S. Air Force fighters have been on high alert and are ready to defend the United States from Soviet bomber attacks. Guided by the North American Air Force radar network, U.S. pilots can fly off and intercept red fighters close to the U.S. airspace within minutes. In the most critical moment, in order to prevent the United States from being attacked by Soviet bombers, the United States Air Force once equipped thousands of anti-aircraft weapons with nuclear warheads.