The European Union, the North Atlantic Treaty Organization, the League of Nations or the United Nations.

欧盟，北大西洋公约组织，国际联盟还是联合国。

Secretary of Defense James Mattis assembled the defense ministers of the member-countries of the North Atlantic Treaty Organization, the 29-nation alliance that contained and defeated the Soviet Union in the ColdWar.

国防部长詹姆斯·马蒂斯召集了北约各成员国的国防部长，也即冷战时期击败苏联的29国联盟。