Marines with Black Sea Rotational Force conduct a formation run wearing their M50 gas mask aboard Adazi Military Base, Latvia, April 15, 2017. The Marines are in Latvia for Exercise Summer Shield, a multinational training evolution designed to train with NATO Allies in Europe.

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Photo credit: © Ted Small / Alamy / Afripics
License: Licensed
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Keywords: 1, 17, air, america, archive, armed, army, black, defence, force, forces, latvia, marines, military, nato, navy, reportage, rotational, sea, service, serviceman, servicemen, shield, soldier, states, summer, united, usa, usmc