April 10, 1941. The Siege of Tobruk Commences.

The siege of Tobruk, which would last until November, commenced on this day when the Germans probe the defenses of the city invested from the land.  Australian infantry repulsed the German efforts.

The fighting there would go on until November and go on to become the basis of heroic British Commonwealth legend with the Australians playing an outsized role in the city's defense.

Australian infantry at Tobruk.

On the same day, the Germans took Zagreb and proclaimed an independent, fascist, Croatian state that would be the scene of all of the horrors associated with fascism and Nazism.

Other events occurring on this day in the Second World War can be read about here:

Day 588 April 10, 1941