Archive footage and interviews with veterans tells the story of World War One. Episode 17 Surely We Have Perished Third Battle of Ypres

This episode turns to the Western Front in 1917. The centerpiece of this gloomy year was the third battle of Ypres – known as the battle of Passchendale. The British fought alone through three and half long months of one of the wettest summers Flanders had ever seen. The battle has aroused much controversy, but one truth emerges – the terrible effect the ordeal inflicted upon the human spirit