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 Home Counties Division was an infantry division of the Territorial Force, part of the British Army, that was raised in 1908. As the name suggests, the division recruited in the Home Counties, particularly Kent, Middlesex, Surrey and Sussex.
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 131st Infantry Brigade, originally the Surrey Brigade was an infantry formation of Britain's Territorial Army that saw service during both the First and the Second World Wars. In the First World War the brigade was in British India for most of the war and did not see service as a complete unit but many of its battalions would see service in the Middle East.
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 18th Indian Division was an infantry division of the British Indian Army that saw active service in the First World War. It took part in the Mesopotamian campaign and formed part of the occupation force for Iraq post-war. The division was not reformed for the Second World War.
The Guards Division was an infantry division of the British Army that was formed in the Great War in France in 1915 from battalions of the Guards regiments from the Regular Army. The division served on the Western Front for the duration of the First World War. The division's insignia was the "All Seeing Eye".
The East Midland Brigade was an infantry brigade of the Territorial Force, part of the British Army, that was raised in 1908. As the name suggests, it commanded infantry battalions recruited in the East Midlands of England: Bedfordshire, Northamptonshire, Cambridgeshire and Hertfordshire. The brigade was an integral part of the East Anglian Division.
The 45th Infantry Division was an infantry division of the Territorial Force, part of the British Army. It was formed in the First World War as a duplicate of the 43rd (Wessex) Division and was originally formed as the 2nd Wessex Division in 1914–1915 before later being renamed as the 45th Division and the brigades numbered. It was sent overseas to India in December 1914 to relieve Regular Army units for service in France. The division remained there for the rest of the war, supplying drafts of replacements to the British units fighting in the Middle East and later complete battalions.
The Liverpool Brigade, later 165th (Liverpool) Brigade was an infantry brigade of Britain's Volunteer Force that served during World War I with the 55th Division of the British Army. During World War II, again as part of the 55th Infantry Division, the brigade remained in the United Kingdom.
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.
The 37th Brigade was an infantry brigade of the British Army that served in both the First and the Second World Wars.
The 53rd Brigade was an infantry brigade of the British Army that saw active service in both the First and Second World Wars. In the First World War, the brigade served with 18th (Eastern) Division and during the Second with the 18th Infantry Division.
The 199th Brigade was an infantry brigade formation of the British Army that saw active service during the First World War as part of 66th Division. During the Second World War, it was reformed as the 199th Infantry Brigade and served with the 55th Infantry Division until August 1944 when it was redesignated as the 166th Infantry Brigade.
The 183rd Brigade was an infantry brigade formation of the British Army in both World Wars
The 134th Infantry Brigade was an infantry brigade of the Territorial Force, part of the British Army. It was formed in the First World War as a duplicate of the Hampshire Brigade and was originally formed as the 2nd/1st Hampshire Brigade in 1914–1915 before later being renamed as the 134th Brigade. It was sent overseas to India in December 1914 to relieve Regular Army units for service in France. The brigade remained there for the rest of the war, supplying drafts of replacements to the British units fighting in the Middle East and later complete battalions. By September 1917 the last of its battalions had departed.
The 135th Infantry Brigade was an infantry brigade of the Territorial Force, part of the British Army. It was formed in the First World War as a duplicate of the South Western Brigade and was originally formed as the 2nd/1st South Western Brigade in 1914–1915 before later being renamed as the 135th Brigade. It was sent overseas to India in December 1914 to relieve Regular Army units for service in France. The brigade remained there for the rest of the war, supplying drafts of replacements to the British units fighting in the Middle East and later complete battalions.
The 136th Infantry Brigade was an infantry brigade of the Territorial Force, part of the British Army. It was formed in the First World War as a duplicate of the Devon and Cornwall Brigade and was originally formed as the 2nd/1st Devon and Cornwall Brigade in 1914–1915 before later being renamed as the 136th Brigade. It was sent overseas to India in December 1914 to relieve Regular Army units for service in France. The brigade remained there for the rest of the war, supplying drafts of replacements to the British units fighting in the Middle East and later complete battalions.
The Huntingdonshire Cyclist Battalion was a bicycle infantry battalion of the British Army. Formed in the Territorial Force in February 1914, it remained in the United Kingdom throughout the First World War. After the war, in 1920, it was converted to infantry and became the 5th (Huntingdonshire) Battalion, Northamptonshire Regiment, in the Territorial Army. The battalion saw extensive service in the Second World War, fighting in France in 1940, Tunisia from 1942–43 and later Sicily and Italy from 1943–45 before ending the war in May 1945 in Austria. It continued to serve after the Second World War until May 1961 when it was amalgamated with the 4th Battalion, Northamptonshire Regiment, to form the 4th/5th Battalion, Northamptonshire Regiment.
United Kingdom 
British Army