LAURENCE REES:   What do you think was the single greatest turning point in the war?

CONRAD CRANE: The big one’s probably Pearl Harbour. The Japanese attack on Pearl Harbour brought the United States into the war in such a way that it was fully mobilized and fully antagonised and eventually it’s going to have major influence in both theatres of the war. A small scale turning point, I think, would be the introduction of the P51 Mustang in early 1944. At the end of 1943 the Germans had actually won the air war in both daylight and night-time bombing. Harris had really lost the battle to Berlin, the Americans had basically stopped the daylight raids because they were too bloody, and the P51 Mustang turns that whole thing around and eventually wins the daylight war, which helps the British win the night-time war. So there’s a couple of possibilities.