Did Allied victory in the Second World War really hinge on the battle of the Atlantic? What made Stalingrad such a pivotal victory for the Soviet Union? And how did forces adapt to desert warfare at El Alamein? In our new five-part series, WW2's Greatest Battles, we're charting five of the pivotal moments that shaped the course of the conflict, with author and military historian, James Holland. New episodes will drop every Thursday, on the HistoryExtra podcast. Learn more about your ad choices. Visit podcastchoices.com/adchoices