Local residents interact with members of US Army’s 2nd Cavalry Regiment ride on an armored vehicle during the ''Dragoon Ride'' military exercise, in Salociai some 178 kms (110 miles) north of the capital Vilnius, Lithuania, Monday, March 23, 2015. The troops began the trek on March 21, and will travel through Lithuania, The Czech Republic and onto Germany by April 1 in an exercise designed to reinforce America's allies.