Members of US Army's 2nd Cavalry Regiment ride on an armored vehicle during the ''Dragoon Ride II'' military exercise near Kupiskis some 160 kms (100 miles) north of the capital Vilnius, Lithuania, Sunday, June 12, 2016. The 2nd Cavalry Regiment is conducting Dragoon Ride II in order to test mission command, sustainment and freedom of movement of its Stryker Combat Vehicles over a 2,200-kilometer route. Dragoon Ride II begins in Germany and progresses along two routes through the Czech Republic, Poland, Lithuania and Latvia, and concludes in Estonia. (AP Photo/Mindaugas Kulbis)

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