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. It served as the operational component of the British Army of the Rhine during the Cold War, and was tasked with defending West Germany.
The 15th Army Group was an army group in World War II, composed of the British Eighth Army and initially the Seventh United States Army (1943), replaced by the Fifth United States Army, which apart from units from across the British Empire and United States, also had entire units from other allied countries/regions, including: one corps from Free France and one from Poland; one division from Brazil; multiple separate brigades of Italians and Greeks; plus support to, and from, local Italian partisans. It operated in the Italian Campaign from 1943 to 1945.
The 2nd New Zealand Division, initially the New Zealand Division, was an infantry division of the New Zealand Military Forces during the Second World War. The division was commanded for most of its existence by Lieutenant-General Bernard C. Freyberg. It fought in Greece, Crete, the Western Desert and Italy. In the Western Desert Campaign, the division played a prominent role in the defeat of German and Italian forces in the Second Battle of El Alamein and the British Eighth Army's advance to Tunisia.
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.
IX Corps was a corps-sized formation of the British Army that existed during the First and the Second World Wars.
The 4th Infantry Division was a regular infantry division of the British Army with a very long history, seeing active service in the Peninsular War and Waterloo Campaign, the Crimean and Boer Wars and both World Wars. It was disbanded after the Second World War and reformed in the 1950s as an armoured formation before being disbanded and reformed again and finally disbanded on 1 January 2012.
The 5th Infantry Division was a regular army infantry division of the British Army. It was established by Arthur Wellesley, 1st Duke of Wellington for service in the Peninsular War, as part of the Anglo-Portuguese Army, and was active for most of the period since, including the First World War and the Second World War and was disbanded soon after. The division was reformed in 1995 as an administrative division covering Wales and the English regions of West Midlands, East Midlands and East. Its headquarters were in Shrewsbury. It was disbanded on 1 April 2012.
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 8th Mountain Division was raised as the 7th Indian Infantry division of the British Indian Army. It is now part of the Indian Army and specialises in mountain warfare.
The 10th Armoured Division was an armoured formation of division-size of the British Army, raised during the Second World War and was active from 1941–1944 and after the war from 1956–1957. It was formed from the 1st Cavalry Division, a 1st Line Yeomanry unit of the Territorial Army (TA) which had previously been serving in Palestine. The division was converted from cavalry to armour and redesignated from 1 August 1941.
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.
General Sir Richard Loudon McCreery, was a career soldier of the British Army, who was decorated for leading one of the last cavalry actions in the First World War. During the Second World War, he was chief of staff to General Sir Harold Alexander at the time of the Second Battle of El Alamein, and later commanded the British Eighth Army, fighting in the Italian campaign from October 1944 until the end of the war, leading it to victory in the final offensive in Italy.
General Sir Sidney Chevalier Kirkman, was a British Army officer, who served in both the First World War and Second World War. During the latter he commanded the artillery of the Eighth Army during the Second Battle of El Alamein, following which he commanded the 50th Division during the Allied invasion of Sicily and XIII Corps throughout most of the Italian Campaign. He later became Director General of Civil Defence in the Civil Defence Department from 1954 to 1960.
13th Corps was a corps-sized formation of the British Army that fought on the Western Front during the First World War and was reformed for service during the Second World War, serving in the Mediterranean and Middle East throughout its service.
Lieutenant-General Sir John Ledlie Inglis Hawkesworth, was a senior British Army officer who served during both World Wars. During the Second World War he commanded the 4th Division during the Tunisian Campaign in early 1943, later commanding the 46th Division throughout most of the Italian Campaign and, finally, X Corps in Greece, before suffering from a fatal heart attack in June 1945.
Operation Diadem order of battle is a listing of the significant formations that were involved in the fighting on the Winter Line and at the Anzio bridgehead south of Rome during Operation Diadem in May - June 1944 which resulted in the Allied breakthrough at Cassino and the breakout at Anzio leading to the capture of Rome.
Lieutenant-General Sir William George Holmes was a senior British Army officer who fought with distinction in the First World War. He later served in the Second World War, where he commanded the 42nd Infantry Division during the Battle of France in May/June 1940.
XII Corps was an army corps of the British Army that fought in the First and Second World Wars. In the First World War, it formed part of the British Salonika Force on the Macedonian front. In the Second World War, it formed part of the British Second Army during Operation Overlord and the subsequent North-West Europe Campaign of 1944-46.
At the start of 1939, the British Army was, as it traditionally always had been, a small volunteer professional army. At the beginning of the Second World War on 1 September 1939, the British Army was small in comparison with those of its enemies, as it had been at the beginning of the First World War in 1914. It also quickly became evident that the initial structure and manpower of the British Army was woefully unprepared and ill-equipped for a war with multiple enemies on multiple fronts. During the early war years, mainly from 1940 to 1942, the British Army suffered defeat in almost every theatre of war in which it was deployed. But, from late 1942 onwards, starting with the Second Battle of El Alamein, the British Army's fortunes changed and it rarely suffered another defeat.
United Kingdom 
British Army 
