150611-N-AZ513-005 USTKA, Poland (June 11, 2015) Marine Sgt. Gregory Castro, assigned to Fleet Anti-terrorism Security Team Europe, (left) explains to infantrymen of Poland’s 1st Mechanized Battalion, what the day’s weapons training will consist of during exercise Baltic Operations (BALTOPS) 2015. BALTOPS is an annual multinational exercise designed to enhance flexibility and interoperability, as well as demonstrate resolve among allied and partner forces to defend the Baltic region. (US Navy photo by Mass Communication Specialist 2nd Class John Callahan/Released)

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Keywords: air, army, baltops, baltops2015, callahan, force, john, mc2, military, navy, poland, range, states, training, united, usa, ustka