London schoolchildren in the midst of an air raid drill
These London schoolchildren are in the midst of an air raid drill ordered by the London Board of Education as a precaution in case an air raid comes too fast to give the youngsters a chance to leave the building for special shelters, on July 20, 1940. They were ordered to go to the middle of the room, away from windows, and hold their hands over the backs of their necks.
(AP Photo)