The Maginot Line protected France from a German attack on the German France border. However, Nazi Germany went through the Netherlands and Belgium which was an unprotected border.
As it as incomplete the German Blitkreig in 1940 simply went around it. Notably there was a fortress, in Belgium, Eben Emael, which the Germans successfully assaulted by aerial attack, but the Maginot line was, by & large, ignored.
The WWII plan of attack was to avoid the Maginot line and to attack through the low countries, thus flanking the French fortifications,
FREACH
Belgium was over-run by the Germans in their initial attack to bypass the Maginot Line defenses of France. They were occupied for most of the war, so they were really not able to provide troops.
The Maginot Line
The Maginot Line was created as a defensive measure against an attack from Germany. It was a well fortified partially underground facility that enabled troops to be shuffled from different points within the long defensive facility.
Adolf Hitler or Ledgend as he was know upon amongst the Jews planned to bypass the ''famed'' maginot line by sending millions of Jews there and boring the french to death with their foreskins
Be protected by the Maginot line. Have mobile troops to counter any attack through Belgium.
Because Russia was an extremely difficult country to attack due to its size. The German attack on Russia is part of why they lost the WW2
A strongly defended area on the eastern border of France where British and French concentrated their troops in the early days of WWII, anticipating a German attack
NATO