The main reasons are:
To destroy the morale of the British people.
To destroy any industry that may produce war supplies to use against Germany.
To overthrow Britain and to rule her army. Her army was one of the world's best, and by taking it over, it would be easy to overthrow the other world powers.
Germany Most of the major cities of Germany were heavilly bombed. Russia Lenningrad, Stalingrad
JAPAN WAS ATOMIC BOMBED BY THE AMERICANS IN 1945
All major cities in the UK were bombed in World War 2.
it is the main port where the british boats where and some still are there
Because the cities were being bombed by the Germans and so they were not safe there
Many thousands. The majority of major buildings in German cities were destroyed.
The Japanese bombed pearl harbour in America so then the Americans bombed two major Japanese cities (Hiroshima and nagasaki)
With all the bombing in Britain in WW2 children were sent away. They were called evacuees. They were sent to live either with relatives in the countryside, or random people, away from all the major cities which were being bombed at this time.
There are around 69 cities in Great Britain, including major cities like London, Manchester, Birmingham, and Edinburgh.
The Battle Britain - 1940 - All major cities were declared open cities by the NAZIS for bombing during this period.
Hiroshima and Nagasaki.
The blitzkrieg was a strategy used by the Germans in much of Europe, except the Great Britain. All major cities of Europe and the cities of Western Russia suffered from this. However, the Germans realized that blitzkrieg wouldn't work for a big country like Russia, even though it proved to be overwhelmingly successful in the occupation of the rest of Europe.