Rotterdam was subjected to heavy aerial bombardment by the Luftwaffe during the German invasion of the Netherlands in World War II. The objective was to support the German troops fighting in the city, break Dutch resistance and force the Dutch army to surrender. Bombing began at the outset of hostilities on 10 May and culminated with the destruction of the entire historic city centre on 14 May, an event sometimes referred to as the Rotterdam Blitz. According to an official list published in 2022 at least 1,150 people were killed (with 711 deaths in the 14 May bombing alone) and 85,000 more were left homeless.