A Marine with 24th Marine Expeditionary Unit posts security at Keflavik Air Base, Iceland, Oct. 17, 2018, during Exercise Trident Juncture 18. Trident Juncture training in Iceland promotes key elements of preparing Marines to conduct follow-on training in Norway in later the part of the exercise.

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Keywords: #tridentjuncture18, air, america, archive, armed, army, defence, force, forces, military, navy, reportage, service, serviceman, servicemen, soldier, states, united, usa