If Russia tries to infiltrate troops into a NATO country, even out of official military uniform as it did before it annexed Ukraine`s Crimea, NATO will respond militarily, the alliance`s top commander said in an interview published on Sunday.
Russia is considering retaliating against Western nations after new sanctions grounded a subsidiary of flagship carrier Aeroflot over the Ukraine crisis, Prime Minister Dmitry Medvedev said on Tuesday.
Ukraine said on Monday its forces had ended a rebel blockade of a strategic airport in the east as it traded charges and threats with Russia over violations of their joint border during a weekend of fierce military combat.
Some 16,400 people fled their homes in eastern Ukraine in the past week, many citing deteriorating security and fears of abduction, and the number of displaced within the country has risen to 54,000, the United Nations said on Friday.
The Council of European Union (EU) Monday decided to refuse the goods originating in Crimea or Sevastopol into its member states, said a statement published after the meeting of 28 EU foreign ministers in Luxemburg.