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A Marine with Marine Rotational Force-Europe prepares to change a fighting position during Exercise Aurora 17 in Lärbro, Sweden, Sept. 21, 2017. (Staff Sgt. Marcin Platek/Marine Corps)
A Marine with Marine Rotational Force-Europe prepares to change a fighting position during Exercise Aurora 17 in Lärbro, Sweden, Sept. 21, 2017. (Staff Sgt. Marcin Platek/Marine Corps)