The 103d Fighter Squadron is a unit of the United States Air Force, falling under the jurisdiction of the District of Columbia Air National Guard. This squadron's primary role lies in air defense and homeland security, utilizing advanced fighter aircraft such as the F-15C Eagle. Notably, it is one of the oldest fighter units in the U.S. military, tracing its roots back to 1917. The squadron's headquarters are located at Joint Base Andrews near Washington D.C. Its call sign is "Grim Reapers," symbolizing its role in protecting American skies from potential threats.