 The squadron was one of the first in the Air National Guard and was operationally gained by the Air Defense Command First Air Force.As the ANG command and control echelons were formed, the 104th came under the operational control of the PA ANG 53d Fighter Wing, although administrative control was retained by the Maryland ANG.With the surprise invasion of South Korea on 25 June 1950, and the regular military's complete lack of readiness, most of the Air National Guard was federalized placed on active duty.