Three American armored convoys today converged in Czech Republic 's capital on tour of Eastern Europe . Vehicles have traveled more than a thousand miles through Poland and the Baltic States as warning to Putin . Countries in the region are nervous after Russian annexation of Crimea and military unrest in the area . U.S. Army said that Nato maneuvers are ' a highly-visible demonstration of U.S. commitment ' to the region .
Three American armored convoys today converged in Czech Republic 's capital on tour of Eastern Europe . Vehicles have traveled more than 1,000 miles through Poland and the Baltic States as warning to Putin . Countries in the region are nervous after Russian annexation of Crimea and military unrest in the area . U.S. Army said that Nato maneuvers are ' a highly-visible demonstration of U.S. commitment ' to the region .