Haddock Force was the name given to a number of Royal Air Force bombers dispatched to airfields in southern France to bomb northern Italian industrial targets, once Italy declared war, which was thought to be imminent. Italy entered the Second World War on 10 June 1940 and the plan was put into effect but at first, the local French authorities prevented the RAF Vickers Wellington bombers from taking off. Armstrong Whitworth Whitleys flying from England via the Channel Islands made the first raid on the night of 11/12 June 1940.