CDAC01957-8, Telegram: Request for Overflights (July 26, 1957)

In 1957, the number of nuclear overflight drills began to increase significantly, likely in response to rising tensions in Europe. CDAC01957 is an example of an American request for clearance, which includes the number of planes and weapons involved in each flight, their general flight paths, and an operational title. All nuclear overflight requests approved by the Canadian government during this time included this information, with further details communicated between the USAF and RCAF directly.