One Picture, One Story – The air defense test, 1941

A crew of observers on the Empire State building, during an air defense test, on January 21, 1941 in New York City, conducted by the U.S. Army.
A crew of observers on the Empire State building, during an air defense test, on January 21, 1941 in New York City, conducted by the U.S. Army.

Their job was to spot “invading enemy” bombers and send information to centers which order interceptor planes. The tests, to run for four days, covered an 18,000-square-mile area in northeastern states.

Photo credits: AP Photo / John Lindsay – All Rights Reserved

source: the Atlantic

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