In a telephone call April 28 between Russia's Defense Minister General Sergei Shoigu and the U.S. Secretary of Defence Chuck Hagel, Shoigu described the activity of U.S. and NATO troops near Russia's border as "unprecedented." According to the official Russian version of the call, his American counterpart assured him the alliance did not have "provocative or expansionist" intentions -- and that Russia should know this.
CNN: Why NATO is such a thorn in Russia’s side (VIDEO)
The first American troops arrive at the airport in Swidwin, Poland on April 23, 2014, after Washington said it was sending a force of 600 to the Baltic states as the crisis over Ukraine deepens.
