The 4th (Denbighshire) Battalion was one of the first TF units to see active service, landing in France in November 1914, where it remained until January 1919. Between 1915 and 1918, another 10 Royal Welch Kitchener battalions also fought on the Western Front, including the battles of Loos, the Somme and Passchendaele; a number of these were disbanded in early 1918 due to manpower shortages. The poets David Jones and Hedd Wyn served with The 11th (Service) Battalion landed in Salonika in November 1915, where it remained for the duration of the war.