Members of the U.S. Army 173rd Airborne Brigade practice during a military exercise 'Black Arrow 2014' at the Rukla military base some 120 km. (75 miles) west of the capital Vilnius, Lithuania, ... more 
Members of the U.S. Army 173rd Airborne Brigade practice during a military exercise 'Black Arrow 2014' at the Rukla military base some 120 km. (75 miles) west of the capital Vilnius, Lithuania, Wednesday, May 14, 2014. Exercise Black Arrow 2014, the largest tactical field training event of the Mechanised Infantry Brigade (MIB) Iron Wolf, Lithuanian Armed Forces, this year. For the following two weeks approximately 1,500 military from the MIB Iron Wolf and other units of the Lithuanian Armed Forces will be training defensive operation in Lithuanian territory along with servicemembers of the 173rd Airborne Brigade of the U.S. Army in Europe (USAREUR). (AP Photo/Mindaugas Kulbis) less 
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Associated Press | Photo By Mindaugas Kulbis
Wed, May 14, 2014 7:27 AM EDT