151209-N-KK394-029 ATLANTIC OCEAN (Dec. 9, 2015) – Sailors secure a nitrogen servicing unit to the flight deck of the aircraft carrier USS Dwight D. Eisenhower (CVN 69). Dwight D. Eisenhower and embarked Carrier Air Wing 3 are underway preparing for their upcoming deployment. (U.S. Navy photo by Mass Communication Specialist Seaman Anderson W. Branch/Released)