Marine Corps Capt. William Paffett, a senior air coordinator with Marine Tactical Air Command Squadron 28, puts on his mission oriented protective posture gear during a chemical, biological, radiological and nuclear defense drill during Ullr Shield on Fort McCoy, Wis., Jan. 18, 2018. Ullr Shield is a training exercise designed to improve 2nd Marine Aircraft Wing's capabilities in extreme cold weather environments. ( Marine Corps.

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Keywords: america, armed, cold, defence, employee, federal, forces, freedom, government, ittb, marines, military, mtacs-28, service, shield, states, training, ullr, united, usa, usmc, weather