As a result, many systems were developed to survive a nuclear bomb, and perhaps none were more iconic or memorable than the incredibly loud air raid sirens used for drills. Although you wouldn't ...

after a German Luftwaffe air raid, 7 May 1941 At 10:40 on the evening of Easter Tuesday 1941 air raid sirens sounded across Belfast, sending people across the city scrambling for safety - in one ...

An archive recording of an air-raid in progress ... the 'Blitz' (from the German word 'blitzkrieg', meaning 'lightning war'). When enemy planes were spotted air raid sirens would sound.