In The Netherlands, a quiet commitment to honour the young soldiers who were buried thousands of kilometres from home has been passed down family generations for 80 years.In a cemetery close to the Dutch city of Eindhoven, Erik Adriaensen and his family perform a now familiar ritual: they bring flowers to the graves of two young men."On Christmas Eve we light candles on the graves, and on special days we drink whisky at the grave and 'give some' to the airmen, by tipping a little on the grave," Adriaensen says.But these graves aren't those of family members. In fact, Adriaensen...