NEW YORK, Aug. 19 (Xinhua) -- U.S. President Donald Trump said Tuesday that the United States will help defend Ukraine after its war with Russia, but that there will not be U.S. troops on the ground.

自伦敦峰会以来，北约成员国已在特朗普的敦促下承诺增加各自的军事预算。它们已为帮助确保乌克兰的和平制定了雄心勃勃的“志愿者联盟”计划。英法已就它们核武库的使用问题发表了联合宣言；英德签署了共同防御条约；同时，欧盟已建立了金融机制，允许成员国借款，以便履 ...