A KC-10 Extender is photographed at Travis Air Force

A KC-10 Extender is photographed at Travis Air Force Base, Calif., May 7, 2015. The KC-10 plays a key role in the mobilization of U.S. military assets, taking part in overseas operations far from home. These aircraft performed airlift and aerial refueling during the 1986 bombing of Libya (Operation Eldorado Canyon), the 1990-91 Gulf War with Iraq (Operations Desert Shield and Desert Storm), the 1999 NATO bombing of Yugoslavia (Operation Allied Force), War in Afghanistan (Operations Enduring Freedom), and Iraq War (Operations Iraqi Freedom and New Dawn). The KC-10 is expected to serve until 2043. (U.S. Air Force Photo by Heide Couch/Released)