A U.S. Air Force CV-22 Osprey aircraft from the 20th Special Operations Squadron, Cannon Air Force Base, New Mexico, is aerial refueled by a KC-10 Extender from the 6th Air Refueling Squadron, Travis AFB, California, during an aerial refueling training mission over New Mexico, on March 11, 2019. Travis airmen fly training missions regularly to stay current and be prepared for future mobility operations. Mid-air refueling is a notoriously difficult operation, with a high level of danger for both the tanker and the recipient aircraft. Special Operations crews must be able to conduct such operations during nighttime, given the fact special operations are far more likely to take place under the cover of darkness. (U.S. Air Force Photo by Master Sgt. Joseph Swafford)