The Battle of Passchendaele, also known as the Third Battle of Ypres, took place during World War I from July to November 1917. It was fought between the Allied forces, primarily the British Empire, and the German army in the Flanders region of Belgium. The battle aimed to capture the strategic ridges and improve the Allies' position on the Western Front. The campaign was marked by heavy rain, which turned the battlefield into a quagmire, complicating troop movements and logistics. Despite significant casualties on both sides, the Allies managed to capture Passchendaele village, but the gains were minimal and came at a high cost, with over 500,000 soldiers lost.