November 11- November 13 (The SubAir Barrier)
The probable dissolution of the SubAir barrier, and the desire to relax Canadian air surveillance efforts is reported in document CDNW12424. The termination of the barrier by the Commander-in-Chief of the U.S. Atlantic fleet is unofficially reported in CDNW12425 and later confirmed in CDNW12427. See more documents on the SubAir barrier here.