Anthony Eden, British Secretary of State for War, makes a radio appeal to all men aged 17-65, “able to fire a rifle or shotgun” to enlist in a new force called Local Defense Volunteers.
The Luftwaffe annihilates the center of the city of Rotterdam. 814 civilians are killed. The home of Willem Pijper (45) is destroyed, along with most of his sketches and manuscripts. Pijper escapes with his life to Amersfoort, where he is given shelter by a former student, Louise Bolleman.
Soviet troops take Jassy (Iasi), Romania.
Pierre Schaeffer (34) broadcasts the call to arms to the Resistance.