The 12th (Eastern) Division was an infantry division raised by the British Army during the First World War from men volunteering for Kitchener's New Armies. The division saw service in the trenches of the Western Front from June 1915 to the end of the war.
The 54th Infantry Division was an infantry division of the British Army. The division was raised in 1908 following the creation of the Territorial Force (TF) as the East Anglian Division. During the First World War the division fought at Gallipoli and in the Middle East. The division was disbanded after the war but reformed in the Territorial Army in 1920. During the Second World War it was a home service division and did not see any combat service abroad and was disbanded in late 1943 but many of its component units went to see service in the Normandy Campaign and North-western Europe from June 1944 to May 1945.
160 (Welsh) Brigade or Brigâd 160 (Cymru), previously 160 Infantry Brigade and Headquarters Wales, is a regional brigade of the British Army that has been in existence since 1908, and saw service during both the First and the Second World Wars, as part of the 53rd (Welsh) Infantry Division. It is a regional command responsible for all of Wales. The Brigade is also regionally aligned with the Eastern European and Central Asian regions as part of defence engagement. The brigade organises an annual patrolling competition in the Brecon Beacons, known as Exercise Cambrian Patrol.
The 18th (Eastern) Division was an infantry division of the British Army formed in September 1914 during the First World War as part of the K2 Army Group, part of Lord Kitchener's New Armies. From its creation the division trained in England until 25 May 1915 when it landed in France and spent the duration of the First World War in action on the Western Front, becoming one of the elite divisions of the British Army. During the Battle of the Somme in the latter half of 1916, the 18th Division was commanded by Major General Ivor Maxse.
The 54th Infantry Brigade was an infantry brigade of the British Army that saw active service in both the First and Second World Wars.
The 55th Infantry Brigade was an infantry brigade of the British Army that saw active service in both the First and the Second World Wars.
The 163rd Infantry Brigade was an infantry brigade of the British Army that saw active service during the First World War in Gallipoli and the Middle Eastern Theatre as part of the 54th Division. In the Second World War the brigade remained in the United Kingdom until it was disbanded in late 1943.
The 36th Infantry Brigade was an infantry brigade formation of British Army that fought in the First World War, as part of 12th (Eastern) Division, on the Western Front. The brigade also fought in the Second World War, with the 12th (Eastern) Infantry Division, in France, and later with 78th Infantry Division in Tunisia and Italy.
The 25th Infantry Brigade was a war-formed infantry brigade of the British Army that saw active service during both the First and the Second World Wars.
The 29th Infantry Brigade was an infantry brigade unit of the British Army. It was originally raised in 1914 and saw service during the First and Second World Wars and the Korean War.
The 145th Infantry Brigade was a regional brigade of the British Army that saw active service in both the First and the Second World Wars, disbanding in 1943 and being reformed in the 1990s. The Brigade was renamed Headquarters 11th Infantry Brigade and Headquarters South East in October 2014.
The 8th Infantry Brigade was an infantry brigade of the British Army that saw active service in both the First and the Second World Wars, before being disbanded and reactivated in the 1960s. The brigade was finally being disbanded in 2006. It was formed before the First World War as part of the 3rd Division. As part of that division it spent the entire war on the Western Front from 1914 to 1918 in the First World War. The brigade was also active during the Second World War.
The 168th Brigade was an infantry brigade formation of the British Army that saw service during both the First and the Second World Wars. Throughout its existence, serving under many different titles and designations, the brigade was an integral part of the 56th (London) Infantry Division. It served on the Western Front during First World War and in the Italian Campaign during the Second World War. It was finally disbanded in the 1960s.
The 35th Brigade was an infantry brigade formation of the British Army that saw active service in both the First and the Second World Wars.
220th Brigade was a Home Service formation of the British Army during the First and Second World Wars.
The 182nd Brigade was an infantry brigade of the British Army that saw active service in the First World War with the 61st Division. It remained in the United Kingdom throughout the Second World War, serving with the 61st Infantry Division.
The 184th Brigade was an infantry brigade formation of the British Army raise for service in both the First and the Second World Wars.
The Essex Brigade, later 161st Brigade and 161st Infantry Brigade, was a volunteer infantry formation of the British Army in existence from 1888 until 1941, and again from 1947. It served at Gallipoli and in Palestine during the First World War and returned to Egypt in the early part of the Second World War before transferring to the British Indian Army and redesignated 161st Indian Infantry Brigade. In peacetime and during the wars the brigade was an integral part of the 54th Infantry Division and contained mostly battalions of the Essex Regiment.
The 176th Brigade was an infantry brigade of the British Army that saw active service in the First World War on the Western Front and disbanded in 1919. The brigade was raised again, now known as 176th Infantry Brigade, shortly prior to the Second World War and fought in the Normandy Campaign before being disbanded in August 1944. In both world wars the brigade was assigned to a 59th Division: the 59th Division during the first, and the 59th (Staffordshire) Infantry Division in the second.
The 148th Infantry Brigade was an infantry brigade formation of the British Army that served in both the First and briefly in the Second World War as part of the 49th Infantry Division and disbanded after the war.
United Kingdom 
Territorial Army 