In Tokyo… Japanese Admiral Toyoda is designated Commander in Chief of the Combined Fleet. He replaces Admiral Koga who was killed on March 31st.

In Burma… The British 14th Army captures heights above Maungdaw-Buthidaung road in the Arakan.

Over Nazi Europe… During the night, RAF bombers target an army depot at Mailly, near Rheims (Germany), aircraft stores at Montdidier (France), an ammunition dumps at Chateaudun (France) and Ludwigshafen (Germany). A total of 49 aircraft are lost.

In the United States… The production of synthetic quinine (anti-malarial) by young Harvard scientists Woodward and Doering is announced in Cambridge, Massachusetts.

In Occupied France… French resistance members burn 100,000 liters of acetone in the Lambiotte plant, Premery.