The main role in Operation Epsom was assigned to the newly arrived VIII Corps, consisting of 60,244 men. VIII Corps would launch their offensive from the beachhead gained by the 3rd Canadian Infantry Division. Their operation was to take place in four phases, with its ultimate objective being the high ground near Bretteville-sur-Laize, south of Caen. VIII Corps would be supported by fire from 736 guns, three cruisers and the monitor . The Royal Air Force was to provide a preliminary bombardment by 250 bombers and close air support thereafter.