The U.S. embassy in Ukraine cited “specific information of a potential significant air attack” on Wednesday morning, ordering its citizens in the country to shelter in place, as tensions between America and the Russian Federation rise ever higher. The American embassy compound in western Kyiv was closed on Wednesday morning, with a convoy of diplomatic vehicles apparently evacuating the buildings. A message posted by the embassy staff stated it had received “specific information of a potential significant air attack” that was thought to be planned for Wednesday. The closure was out of an “abundance of caution”, they said, but nevertheless...