Gripping Photo Essay of Battle of Britain

In the summer and autumn of 1940, Germany's Luftwaffe conducted thousands of bombing runs, attacking military and civilian targets across the United Kingdom. Hitler's forces, in an attempt to achieve air superiority, were preparing for an invasion of Britain code-named "Operation Sea Lion." At first, they bombed only military and industrial targets. But after the Royal Air Force hit Berlin with retaliatory strikes in September, the Germans began bombing British civilian centers. Some 23,000 British civilians were killed between July and December 1940.