Hector Castillo, a Navy Arctic Submarine Laboratory technician, crosses the ice at Ice Camp Nautilus in the Arctic Ocean during Ice Exercise (ICEX) 2014 March 19, 2014. ICEX tested submarine operations in the Arctic. ( Navy photo by Mass Communication Specialist 2nd Class Joshua Davies/Released) Hector Castillo, a Navy Arctic Submarine Laboratory technician, crosses the ice at Ice Camp Nautilus in the Arctic Ocean during Ice Exercise (ICEX) 2014 March 19, 2014 140319-N-RB579-175

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Photo credit: © PJF Military Collection / Alamy / Afripics
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Keywords: armed, asl, conflict, forces, military, states, technician, united, usn, war