这是会谈中首次提出将北约成员资格与领土让步挂钩的问题。
This is the first time the question of linking NATO membership to territorial concessions has been raised during the talks.
日本时报
美国提出乌克兰以割让顿巴斯换取北约成员资格的设想U.S. floated idea of Ukraine ceding Donbas for NATO membership
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