22nd Division and saw service at Salonika 9th (Service, later Reserve) Battalion – formed in October 1914 at Pembroke Dock; later became 57th (Training Reserve) Battalion of the 13th Reserve Brigade 10th (Service) Battalion (1st Gwent) – formed in December 1914 at Ebbw Vale; joined 43rd Division (later 38th (Welsh) Division) and saw service on the Western Front 11th (Service) Battalion (2nd Gwent) – formed in December 1914 at Brecon; also joined the 43rd (later 38th (Welsh)) Division and saw service on the Western Front; disbanded in February 1918 in France 12th (Service) Battalion (3rd Gwent) – formed in March 1915 as a Bantam battalion of the Welsh Bantam Brigade; joined the 40th Division in September and saw service on the Western Front, where it was disbanded in February 1918 13th (Reserve) Battalion - formed in July 1915 at Abertillery, Monmouthshire as a local reserve battalion for the 10th, 11th and 12th Battalions; became 59th (Training Reserve) Battalion, 13th Reserve Brigade in September 1916 14th (Reserve) Battalion – formed in September 1915 at Prees Heath as a local reserve battalion; in September 1916 became 65th (Training Reserve) Battalion, part of the 14th Reserve Brigade 15th (Service) Battalion – formed in June 1918 at North Walsham; in July absorbed the cadre of the 10th Cheshires 51st (Graduated) Battalion, South Wales Borderers – formed from a training unit 1917 52nd (Graduated) Battalion, South Wales Borderers – formed from a training unit (originally 9th (Service) Bn) 1917 53rd (Young Soldier) Battalion, South Wales Borderers – formed from a training unit 1917 1/1st Battalion, Monmouthshire Regiment – part of 53rd (Welsh) Division; joined 28th Division on Western Front May 1915; to 46th (North Midland) Division as pioneer battalion, September 1915 2/1st Battalion, Monmouthshire Regiment – formed in September 1914 at Newport; joined 68th (2nd Welsh) Division and remained in the UK for the duration of the war; disbanded in March 1918 3/1st Battalion, Monmouthshire Regiment – formed in February 1915 at Abergavenny; became a reserve battalion in April 1916; absorbed the 3/2nd and 3/3rd Monmouthshires in July 1917, all of which had identical histories to the 3/1st; remained in the UK for the duration of the war 1/2nd Battalion, Monmouthshire Regiment – part of 53rd (Welsh) Division; joined 4th Division on Western Front November 1914; to 29th Division as pioneer battalion, May 1916 2/2nd Battalion, Monmouthshire Regiment – formed in September 1914 at Pontypool;