Army Co-operation Squadron was formed 13 August 1941 at Croyden,
England. Attached to No. 83 Group of the Second Tactical Air Force, the Squadron spent its first 12 months training on Lysander and Tomahawk Aircraft. Operational sorties were then conducted using the Mustang and Spitfire. The Squadron also undertook photo reconnaissance and ground attack missions for both the Dieppe Raid and the Allied Invasion of Europe. Known as "populars and rhubarbs", the activities earned several battle honors of which eight arc presently inscribed on the Squadron Colours.
Re-formed as 414 (F) Squadron in Bagotville, Quebec, 1 November 1952, the unit became operational, flying the MK IV Sabre. 414 was destined to relocate to No. 4 Fighter Wing, Baden-Soellingen, West Germany on 4 September 1953. The Sabre MKs IV, V, and VI, through the highly capable air and ground crews, served the Squadron well in its Western European air defence assignment.
August 1957 brought the Black Knights back to Canada as 414 (AWF), an all-weather fighter/interceptor squadron, piloting the CF-100 (Canuck), closely followed in 1962 by replacement, with the CF-101 (B) Voodoo. The Squadron, based at North Bay from 1957 to 1964, disbanded again in late June of 1964.
During this period "Sir Cedric" the Black Knight became the squadron mascot.
414 Squadron moved to Ottawa in 1968 and then returned to North Bay in August 1972. The EC-117 Falcon aircraft arrived in the fall of 1977 to augment, and eventually replace, the CF-100 which retired from service in December i98i. 414 Squadron also acquired a unique and extremely capable, EF- 101 Voodoo aircraft in I982. The upgrade program to replace the aging Falcon aircraft with new Canadair Challenger 600 series aircraft was completed in June 1989. With the addition of these aircraft and specialized (EW) T-33's, the Squadron operated some 25 aircraft throughout North America, until the formation of 414 (composite) Squadron at CFB Comox which operates 12 T-33 aircraft.
414 Squadron accomplishes several tasks. The one performed most often is that of providing an ECM environment to allow more realistic training of fighter interceptor aircrew, ground radar operators, and maritime forces. Additionally, the squadron provides conversion training for the T-33 and training for Electronic Warfare Officers who are specialized navigators in the Canadian Forces. The squadron travels constantly, sending air and groundcrew on exercise all over North America.