On the 75th anniversary of the Battle of Arnhem, Dan Snow was joined by veterans and dignitaries to follow in the footprints of those who took part in the bold attempt to outflank the Germans in 1944. As Dan prepares to jump out of an aircraft to relive the events of the 1944 landings, we hear from the UK and US ambassadors to the Netherlands, from the Mayor of Arnhem, and from veterans who lived through the battle.