How did the government try to protect cities from being bombed?
Barrage balloons were put up to force the german planes to fly higher – so their bombing would be less accurate. The Barrage balloons were tethered by steel cables strong enough to destroy any aircraft which flew into them.
To stop enemy bombers finding their way up the Thames estuary, in 1943 the army built Redsands Fort, a group of anti-aircraft platforms off the Kent coast.
When did the blitz end?
The Blitz ended in mid-May 1941, when much of the German air force was sent east to prepare for the invasion of Russia.
The next big air attacks came from the terrifying V-1 and V-2 attacks. These were flying bombs (doodlebugs) catapulted into the air from camourflaged launched sites in northern, Occupied Europe.