epa04685469 A US soldier stands on Stryker vehicle and waves to Czech supporters as a US army convoy crosses the border into Czech republic in Harrachov at the Czech -Polish border 29 March 2015. US army soldiers finished their training in Baltic countries and are heading to the US Army base in the German town Vilseck. The convoy is the part of the operation Dragoon Ride — a showcase of US and NATO firepower in Eastern Europe. EPA/FILIP SINGER