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- Mutual Defense Assistance Agreement 共同防御援助协定
- Mutual Defense Assistance Office 共同防御援助办事处
- Mutual Defense Assistance Program 共同防御援助计划
- Mutual Defense Assistance Training Program 共同防御援助训练计划
- Advances for Mutual Defense Assistance 共同防御援助提议
- Mutual Defense Assistance 共同防御援助
- Mutual Defense Assistance Act 共同防御援助法案
- Mutual Defense Assistance Law 共同防御援助法
- Leagues are commonly made for mutual defense. 结成联盟往往是为了共同防御。
- Treaty of Bj?rk? A secret mutual defense accord between the German Empire and Russia. 1904年拉萨条约英国侵略军强迫西藏代表签定的不平等条约。
- In December 1954, the U.S. concluded with the Taiwan authorities a so-called mutual defense treaty placing China's Taiwan Province under U.S. 一九五四年十二月，美国又与台湾当局签订了所谓《共同防御条约》，将中国的台湾省置于美国的“保护”之下。
- The Sino-American Mutual Defense Treaty, between the United States and the Republic of China, is signed in Washington, DC. 年,美国和中华人民共和国间的中美共同防御条约在华盛顿签署。
- The SCO defense ministers are in regular and growing consultation on mutual defense needs, as NATO and the US military command continue provocatively to expand across the region wherever it can. 随着北大西洋公约组织（NATO）和美国军方挑衅性地肆意扩大他们的地盘，上合成员国的国防部长定期且逐渐频繁地就双边的防务需要进行磋商。
- Defense Assistance Award Action Data System 国防援助奖励行为数据系统
- Military Defense Assistance Pact 军事防御援助条约
- Military Defense Assistance Program 军事防御支援计划
- Agreement of Mutual Defense and Assistance between the USA and the UK 美英共同防御援助协定
- Mutual Defense Treaty between the USA and ROC 中美共同防御条约
- The value of your assistance is inestimable. 阁下鼎立相助之功不可胜言。
- It will be to our mutual advantage to work closely. 密切合作将为我们业务的顺利开展提供保证。
