Why did the battle of Normandy happen?
The Germans wanted more land and they wanted to control more of
western Europe, so they took over Normandy, France and then the
allied forces of Australia, Canada, Belgium, France,
Czechoslovakia, Greece, New Zealand, the Netherlands, Norway,
Poland, the United Kingdom, and the United States were unhappy so
they invaded the beaches of Normandy.
The Battle of Normandy and the D-Day invasions were part of the
overall strategy of liberating Europe from Nazi rule. Europe was
being invaded from the east by the Soviet Army, and from the south
by Allied forces in Italy, but a more broad front was needed for
the main push on Germany, and Normandy was chosen.