Messines ridge destroyed |
On 17 June 1917 a huge underground explosion destroyed the German-held Messines ridge south of Ypres.
British, Australian and Canadian miners had worked for a year to dig tunnels and place 600 tonnes of explosives. Some 10,000 German soldiers were killed instantly and the blast was heard as far away as London. The explosion left a massive crater, which has since been transformed into a peace memorial.