1940
The D day invasion was the Allied invasion of Germany occupied France.
No the D-Day operation was the Allied landings at the beaches of Normandy in France, not an invasion of Germany.
England France and Russia
Blitzkrieg .
After the heroic rescue at Dunkirk, France was deeply demoralized and couldn't withstand Germany's invasion from Southern France. After the invasion France surrendered.
In bergulium.
Germany
Invasion of Poland Sep. 1 1939.
Alongside France, Britain gave Germany a time limit to stop their invasion, when no reply was received they declared war on Germany.
The invasion of Poland on 1 September 1939 was followed by a declaration of war against Germany by Britain and France two days later.
The invasion of Poland which began in September 1939
The 1939 invasion of Poland caused Britain to declare war on Germany, which started WWII.