Marching along the frozen roads of Poland and northern Germany this week, a hardy group of young RAF recruits - accompanied by relatives of the survivors of the famous Great Escape of 1944 - are commemorating a legendary moment in history. Sixty-five years on, they are recreating the deadly 1,000-mile march which the Nazis forced captured Allied airmen to undertake at the end of World War II. It is a fitting commemoration of the bravery and toughness of a remarkable group of British, American and Canadian airmen, dozens of whom were involved in the previous year's escape from the notorious...