blitz...............
You can read the British air raid shelter in the attached link below.
The two countries were at war.
The two types of air raid shelters are called the Anderson shelter and the Morrison shelter
Anderson and Morrison.
Air Raid.......
Air Raid Precautions
there where two air raid shelters one was the Morrison shelter which looked like a table the other was the Anderson shelter which was underground
Are you thinking of "Blockbuster" by The Sweet?
Air raids are where planes fly over cities or towns and bomb them. There is no raid as such, but the place is bombed. This is why there are places called air raid shelters, either steadily built above ground or dug in below ground where people could hide from the bombing.
Go to an air raid shelter
air raid
Go in the air raid shelter on each map