Question: Who was the French military organization that in 1940 controlled the section of the Maginot Line between the French border with Belgium and Maubeuge in the battle know as The Fall of France?
Sentence (from "Battle of France"): In six weeks from 10 May 1940, German forces defeated Allied forces by mobile operations and conquered France, Belgium, Luxembourg and the Netherlands, bringing land operations on the Western Front to an end until 6 June 1944.
Relevant evidence: No