Aerial pictures reveal the incredible human cost of WW1 in a landscape still scarred by the conflict

These poignant drone pictures reveal the incredible human cost of The First World War - showing mass graves and the trenches and bomb craters which still scar the earth.

The images from 125ft up show the scale of the killing - with ranks of white grave markers on the the Belgian countryside. It also shows the Lochnagar Crater which marks the site of an explosion from a British mine beneath the German lines signalling the start of the Battle of the Somme.