British Defence Secretary John Healey on Monday announced the launch of a 50-day military support campaign for Ukraine, ...

MOSCOW/KIEV, July 17 (Xinhua) -- Russia on Tuesday rejected U.S. President Donald Trump's 50-day ultimatum to agree to a Ukraine ceasefire, dismissing the threat of "severe tariffs" as unacceptable.

特朗普在白宫对记者发表了上述言论。一天前，他曾表示，美国 已与欧洲盟友达成协议 ，将向乌克兰提供新武器，并警告称，除非莫斯科采取措施停止这场已持续三年的战争，否则他可能对俄罗斯及其贸易伙伴征收新关税。