you migh like to weave a mention of Thucydides' dictum into this. What do people think about this as a first cut for a paragraph? 
 :The moral questions surrounding the raid arise because as"The Second World War is traditionally portrayed as a struggle between good and evil": Should the Allies have considered the civilian casualties when discussing targets at Yalta and have factored them into the decision making process? Should the RAF and USAAF commanders and the politicians above them, knowing the likely civilian casualty rates which resulted from the bombing tactics which had been developed during the war, have modified their bombing tactics minimise these casualties as the war in Europe drew to a close?