Original sentence: The British abandoned this policy at the end of the Phony War on 15 May 1940, one day after the Rotterdam Blitz.The United Kingdom's policy was to restrict bombing to military targets and infrastructure such as ports and railways which were of military importance.While it was acknowledged bombing Germany would cause civilian casualties, the British government renounced deliberate bombing of civilian property, outside combat zones, as a military tactic
Edited sentence: If Germany confined attacks to purely military targets the RAF should "launch an attack on the German fleet at Wilhelmshaven" and "Attack warships at sea when found within range".. The government communicated to their French allies the intention "not to initiate air action which might involve the risk of civilian casualties" While it was acknowledged bombing Germany would cause civilian casualties, the British government renounced deliberate bombing of civilian property, outside combat zones, as a military tactic.On 15 May, the day after the Rotterdam Blitz, the British government met and authorised "Bomber Command to carry out attacks on suitable military objectives, (including marshalling yards and oil refineries) in the Ruhr as well as elsewhere in Germany".The United Kingdom's policy was set out on 31 August 1939: If Germany initiated unrestricted air action the United Kingdom "should attack objectives vital to Germany's war effort, and in particular her oil resources"