In Belgium... The Belgian army is placed on alert because of recent tension and signs of German troop movements. The Luftwaffe has been successful in keeping Allied reconnaissance flights away from the German preparations.

In France... Reynaud has been growing more and more unhappy with the leadership of Gamelin, the Supreme Commander. He has been unable to dismiss him because he is supported in Cabinet by Daladier, who remains influential although he is no longer prime minister. These quarrels now come to a head but no announcement is made pending the formation of a new government. The German attack on May 10th will cause the changes to be deferred.

In Germany... Hitler issues orders for the Western offensive.