The War Office has referred to several British government organisations in history, all relating to the army. It was a department of the British Government responsible for the administration of the British Army between 1857 and 1964, when its functions were transferred to the new Ministry of Defence (MoD). It was at that time, equivalent to the Admiralty, responsible for the Royal Navy (RN), and the Air Ministry, which oversaw the Royal Air Force (RAF). The name 'War Office' is also given to the former home of the department, located at the junction of Horse Guards Avenue and Whitehall in central London. The landmark building was sold on 1 March 2016 by HM Government for more than £350 million, on a 250 year lease for conversion into a luxury hotel and residential apartments.
View of the former War Office building from Whitehall.
The former War Office building facing Horse Guards Avenue.
The British Army is the principal land warfare force of the United Kingdom, British Overseas Territories and Crown Dependencies, a part of the British Armed Forces along with the Naval Service and the Royal Air Force. As of 1 January 2024, the British Army comprises 75,166 regular full-time personnel, 4,062 Gurkhas, 26,244 volunteer reserve personnel and 4,557 "other personnel", for a total of 110,029.
Lord Protector Oliver Cromwell
Lord General Thomas Fairfax, the first commander of the New Model Army
John Churchill, 1st Duke of Marlborough, was one of the first generals in the new British Army and fought in the War of the Spanish Succession. He was a noted ancestor of Sir Winston S. Churchill, later famous Prime Minister during World War II.
In the 1879 Battle of Rorke's Drift, a small British force repelled an attack by overwhelming Zulu forces; eleven Victoria Crosses were awarded for its defence.