Master Sgt. Curtis Wilson takes the oath of reenlistment from his brother Capt. Heath Wilson while rapelling from a wall at the U.S. Air Force Pararescue School at Kirtland Air Force Base, N.M., April 2012. Sergeant Wilson is assigned to Air Force Operational Test and Evaluation Headquarters at Kirtland. The Wilson family has more than 300 years of military service spanning three generations. (Photo by George Diamond).