Bernard Harbour, also known as Nulahugiuq, is a bay on the Nunavut mainland. It is situated on the Dolphin and Union Strait, southwest of Sutton Island. A Hudson’s Bay Company trading post was once located here. It is also a former Distant Early Warning Line site and current North Warning System site. The ‘Distant Early Warning Line’ was a system of radar stations in Arctic Canada set up during the Cold War to detect incoming Soviet bombers and provide early warning of sea and land invasions.