A U.S. Air Force Airman from the 748th Aircraft Maintenance Squadron performs routine maintenance checks on a 493rd Fighter Squadron F-15C Eagle assigned to Royal Air Force Lakenheath, England, at Ämari Air Base, Estonia, Aug. 15, 2016. F-15C Eagles from the 493rd FS and the California Air National Guard’s 194th Expeditionary Fighter Squadron from Fresno are participating in a multinational flying training deployment in Estonia to strengthen and secure NATO partnerships and capabilities, while focusing on dissimilar air training. (U.S. Air Force photo/Senior Airman Erin Trower)