'My father was on Sword Beach': Professor Michael Clarke on the difference D-Day made

Today marks the 80th anniversary of the D-Day landings which were a turning point in the Second World War and ultimately led to the Allied victory over Nazi Germany.  On this episode, Niall Paterson sits down with historian and security analyst Professor Michael Clarke to talk about why the beachheads in Normandy were so critical, his father's experience there, what happened next in the war and why there are parallels between now and then as Vladimir Putin threatens Europe.  Plus, Royal correspondent Rhiannon Mills on the events in Normandy today commemorating D-Day. Producer: Emma Rae Woodhouse  Promotions producer: Jada-Kai Meosa John Editor: Wendy Parker