This was the site of the Battle of Arras in the WW1. It was controlled by the Germans. The area was fortified with tunnels, 3 rows of trenches which were behind barbed wire and had a huge amount of artillary. Previous attempts by the British and French army had failed to take the land over. In 1917 it was decided another attack would be launced. All 4 divisions of the Canadian Corps were brought together along with the British 5th Infantry Division. After months of planning the attack was enforced and they succeded. It started on April 2nd and the last ridge was controlled by the 12th April. Thousand of men lost their lives during this battle and many more thousands were wounded.
In recognition of the great sacrifice the Canadians made the French Goverment formally gave Canada a portion of the ridge in perpetuity. A lso a memorial stands on hill 145 to commemerate the battle.

Many ghosts of soldiers have been seen on this site both German and Canadian and the sound of heavy breathing and the rustling of their gear as been heard. Also people have reported to being touched and shoved, and warned to leave the area quickly.