The 2d Special Operations Squadron (2 SOS) is a United States Air Force Reserve unit, assigned to the 919th Operations Group. Stationed at Hurlburt Field, Florida, the unit operates MQ-9 Reaper Remotely Piloted Vehicles. The unit is one of the oldest units in the United States Air Force, being formed on 25 September 1917 at Fort Omaha, Nebraska. During World War I, the unit was part of the Balloon Section, American Expeditionary Forces (AEF), becoming the first American balloon company to reach the Western Front in France and enter combat. It was part of the Army Balloon and Airship School after the war, being a balloon training unit until the beginning of World War II. It was part of Strategic Air Command during the Cold War.