 Within the first two months of the war, the German occupiers terrorized the Belgians, killing thousands of civilians and looting and burning scores of towns, including Leuven, which housed the country's preeminent university, mainly in retaliation for Belgian guerrilla warfare, (see "francs-tireurs").This action was in violation of the 1907 Hague Convention on Land Warfare provisions that prohibited collective punishment of civilians and looting and destruction of civilian property in occupied territories.The raid on Scarborough, Hartlepool and Whitby, which took place on December 16, 1914, was an attack by the Imperial German Navy on the British seaport towns of Scarborough, Hartlepool, West Hartlepool, and Whitby.