I Corps was an army corps in existence as an active formation in the British Army for most of the 80 years from its creation in the First World War until the end of the Cold War, longer than any other corps. It had a short-lived precursor during the Waterloo Campaign.
VIII Corps was a British Army corps formation that existed during the First and Second World Wars. In the latter, it took part in the Normandy Campaign in 1944, where it was involved in Operation Epsom and Operation Goodwood. It would later play a supporting role in Operation Market Garden and finish the war by advancing from the Rhine to the Baltic Sea.
IV Corps was a corps-sized formation of the British Army, formed in both the First World War and the Second World War. During the First World War the corps served on the Western Front throughout its existence. During the Second World War it served in Norway and Britain until it was transferred to India, which was threatened with attack after Japan entered the war.
The II Corps was an army corps of the British Army formed in both the First World War and the Second World War. There had also been a short-lived II Corps during the Waterloo Campaign.
III Corps was an army corps of the British Army formed in both the First World War and the Second World War.
The 31st Division was an infantry division of the British Army. It was raised in the Great War by volunteers from Kitchener's Army and formed in April 1915 as part of the K4 Army Group and taken over by the War Office on 10 August 1915. Comprising mainly infantry battalions from Yorkshire and Lancashire, the division was sent to Egypt in December 1915 before moving to France in March 1916 and spent the remainder of the First World War in action on the Western Front. The 31st Division was the quintessential New Army division, being made up entirely of Pals battalions.
VII Corps was an army corps of the British Army active in the First and Second World Wars. In the early part of the Second World War it was part of the defence forces of the United Kingdom, and later acted as a shadow formation for deception purposes.
The King's Shropshire Light Infantry (KSLI) was a light infantry regiment of the British Army, formed in the Childers Reforms of 1881, but with antecedents dating back to 1755. It served in the Second Boer War, World War I and World War II. In 1968, the four regiments of the Light Infantry Brigade amalgamated to form The Light Infantry, with the 1st KSLI being redesignated as the 3rd Battalion of the new regiment.
Field Marshal Sir Cyril John Deverell was a British Army officer who served as Chief of the Imperial General Staff (CIGS), the professional head of the British Army, from 1936 to 1937. Prior to his becoming CIGS, he fought in the Fourth Anglo-Ashanti War and the First World War, during which he commanded at battalion, brigade and division level, and later advised the British government on the importance of maintaining the capability to mount an Expeditionary Force for operations on mainland Europe in the years leading up to the Second World War.
V Corps was an army corps of the British Army that saw service in both the First and the Second World Wars. It was first organised in February 1915 and fought through the First World War on the Western front. It was recreated in June 1940, during the Second World War and was substantially reorganised in 1942 for participation in Operation Torch. It fought through the Tunisia Campaign and later the Italian Campaign.
The Queen's Own Oxfordshire Hussars (QOOH) was a Yeomanry Cavalry regiment of the British Army's auxiliary forces, formed in 1798. It saw service in the Second Boer War with 40 and 59 Companies of the Imperial Yeomanry and was the first Yeomanry regiment to serve in Belgium and France during the Great War. After almost four years of Trench warfare on the Western Front, where cavalry had been superfluous, the QOOH led the advance during the Allies' victorious Hundred Days Offensive in 1918. In 1922, the QOOHt became part of the Royal Artillery and during World War II it served as anti-tank gunners at Singapore and in North West Europe. After a series of postwar mergers and changes of role, the regiment's lineage is maintained by 142 Vehicle Squadron, Royal Logistic Corps.
The South Irish Horse was a Special Reserve cavalry regiment of the British Army. Formed as an Imperial Yeomanry regiment in 1902 as the South of Ireland Imperial Yeomanry, it perpetuated a unit formed during the Second Boer War. It transferred to the Special Reserve (Cavalry) in 1908 and was renamed as the South Irish Horse. Having taken part in the fighting of World War I, it was disbanded after Irish Independence in 1922.
The 2nd Cavalry Division was a division of the regular British Army that saw service in the Peninsular War and in World War I, when it also known as Gough's Command, after its commanding general. It was part of the British Expeditionary Force that served in France in from 1914 to 1918. It was involved in most of the major actions where cavalry were used as a mounted mobile force, and also many where the troops were dismounted and effectively served as infantry.
Operation Michael was a major German military offensive during the First World War that began the German Spring Offensive on 21 March 1918. It was launched from the Hindenburg Line, in the vicinity of Saint-Quentin, France. Its goal was to break through the Allied (Entente) lines and advance in a north-westerly direction to seize the Channel Ports, which supplied the British Expeditionary Force (BEF) and to drive the BEF into the sea. Two days later General Erich Ludendorff, the chief of the German General Staff, adjusted his plan and pushed for an offensive due west, along the whole of the British front north of the River Somme. This was designed to first separate the French and British Armies before continuing with the original concept of pushing the BEF into the sea. The offensive ended at Villers-Bretonneux, to the east of the Allied communications centre at Amiens, where the Allies managed to halt the German advance; the German Army had suffered many casualties and was unable to maintain supplies to the advancing troops.
The East Riding Royal Garrison Artillery (ERRGA) was a part-time unit of Britain's Royal Artillery based at Hull in the East Riding of Yorkshire. It provided coastal defence artillery along the Humber Estuary from 1908 to 1956, manned siege batteries on the Western Front during World War I at the Somme and Ypres and played a role in the pursuit of the German army during the Hundred Days Offensive. It served as infantry in Allied-occupied Germany after World War II. Its successor units in the Territorial Army included anti-aircraft artillery and field engineers.
The North Scottish Royal Garrison Artillery and its successors were Scottish part-time coast defence units of the British Army from 1908 to 1961. Although the unit saw no active service, it supplied trained gunners to siege batteries engaged on the Western Front during World War I.
The 1st Dorsetshire Artillery Volunteers and its successors were part-time coast defence units of the British Army from 1859 to 1956. Although these units saw no action, they protected the Dorset Coast, including the naval base of Portland Harbour, in both World Wars and also supplied trained gunners to siege batteries engaged on the Western Front during World War I. The unit continued in the Territorial Army after World War II.
The 2nd Royal Lancashire Militia (The Duke of Lancaster's Own Rifles) was an auxiliary regiment raised in the county of Lancashire in North West England during the French Revolutionary War. It later became part of the King's (Liverpool Regiment). Although primarily intended for home defence, its battalions served in Ireland and saw active service during the Second Boer War. After conversion to the Special Reserve (SR) under the Haldane Reforms one of its battalions was among just a handful of SR units to see combat during World War I, fighting in many actions on the Western Front from early 1915 until the Armistice in 1918. After a shadowy postwar existence the unit was finally disbanded in 1953.
The Royal London Militia was an auxiliary regiment organised in the City of London during the French Revolutionary War from the former London Trained Bands. It later became part of the Royal Fusiliers. After conversion to the Special Reserve (SR) under the Haldane Reforms it was one of just a handful of SR units to see combat during World War I, fighting in many actions on the Western Front from 1916 until the Armistice in 1918. After a shadowy postwar existence the unit was finally disbanded in 1953.
The Sussex Royal Garrison Artillery and its successors were part-time coast defence units of the British Army from 1910 to 1932. Although the unit saw no active service, it supplied trained gunners to siege batteries engaged on the Western Front during World War I.
United Kingdom 
British Army