KEFLAVIK, Iceland -- Maj. Derck Mullin, 756th Air Refueling Squadron, adjusts the controls on an altitude warning system before preparing to refuel NATO aircraft during the 2011 Northern Viking exerci

View at highest resolution (1000 by 464 pixels)

KEFLAVIK, Iceland -- Maj. Derck Mullin, 756th Air Refueling Squadron, adjusts the controls on an altitude warning system before preparing to refuel NATO aircraft during the 2011 Northern Viking exercise here June 9. Northern Viking tests the capabilities of Iceland and the country's NATO allies, as well as "increase the readiness of the forces involved and their interoperability." The Reserve 459th Air Refueling Wing, Joint Base Andrews, Md., participated in this year's exercise along with other active-duty and Air National Guard units. (U.S. Air Force photo released/Tech. Sgt. Steve Lewis)

Find more photos tagged with:

• air security 
• Northern Viking 
• partnership 
• refueling 
• Iceland 
• 459th Air Refueling Wing 
• Air National Guard 
• NATO 
• refueling plane 
• airplane