KEFLAVIK, Iceland -- Air Force Reserve KC-135 pilots from the 459th Air Refueling Wing receive weather information over Iceland before taking off during the Northern Viking 2011 exercise here June 8. 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)