双向流动美日两国的军事技术合作始于二战后初期。两国在1951年签署了安全同盟条约,开始了在各个军事领域的合作。安全条约虽几经修改,但军事技术的合作一直被双方看作是军事合作最为重要的组成部分。进入80年代以后,由于日本经济的迅速崛起,特别是科技的巨大进步,军事技术由以前主要从美国流 Two-way flow The United States and Japan’s military-technical cooperation began in the early post-World War II period. The two countries signed the Security Alliance Treaty in 1951 and started their cooperation in various military fields. Although the security treaties have been revised several times, cooperation in military technology has been viewed by both sides as the most important component of military cooperation. Since entering the 1980s, due to the rapid rise of Japan’s economy, especially the great progress of science and technology, military technology has changed from mainly flowing from the United States