When did the ypres war start?

The Ypres War, often referred to in the context of World War I, involved several battles around the Belgian town of Ypres. The First Battle of Ypres began on October 19, 1914, and continued until November 22, 1914. Subsequent battles, including the Second Battle of Ypres in April 1915 and the Third Battle of Ypres in 1917, also took place in the Ypres Salient.