40年前,即1961年3月4日,前苏联首次使用“A”型战略反导弹系统成功地对P-12弹道导弹常规弹头实施了拦截;从而使苏联在世界研制战略反导弹技术方面创造了领先于美国多年的奇迹;也促使美国加快了研制带有分导式弹头的洲际弹道导弹的步伐,以对付苏联为其铸造的核盾牌。 40 years ago, March 4, 1961, the former Soviet Union's first use of the “A” strategic anti-missile system successfully intercepted conventional P-12 ballistic missiles; thus enabling the Soviet Union to develop strategic anti-missile technology in the world And created a miracle ahead of the United States for many years. It also urged the United States to speed up the pace of developing ICBMs with sub-guided warheads in order to counter the Soviet nuclear shields cast by them.