I know this news would be archieved,cause I don't want to talk too much.
By May 1940, Europe had been at war for nine months. Yet Britain and France, despite having declared war on Germany in September 1939 following Hitler’s attack on Poland, had seen little real fighting. This tense period of anticipation – which came to be known as the ‘Phoney War’ – met an abrupt end on 10 May 1940, when Germany launched an invasion of France and the Low Countries.
The German plan of attack, codenamed Case Yellow, entailed an armoured offensive through the Ardennes Forest, which bypassed the strong French frontier defences of the Maginot Line. The advance would then threaten to encircle French and British divisions to the north, stationed on the Belgian frontier.