Source Wikipedia: American Revolutionary War
The British Army fought three separate wars in Afghanistan between 1839 and 1919
The British Army fought the Ashanti Empire across a series of Anglo-Ashanti Wars between 1823 and 1900
The British Army defeated the Urabi revolt at Tel el-Kebir in the 1882 Anglo-Egyptian War
British Army regulars and colonial units fought the 1879 Anglo-Zulu War, including the defenses at Rorke's Drift
British Army units, including 2 and 3 Para, fought the land campaign of the 1982 Falklands War
The British Army's 1842 retreat from Kabul during the First Anglo-Afghan War (1839-42) was one of its worst disasters
The British Army was defeated by Boer commandos at Majuba Hill in the First Boer War (1880-1881)
British Army regulars, alongside East India Company forces, suppressed the 1857-58 Indian Rebellion, including the sieges of Delhi and Lucknow
The British Army fought the Mau Mau Uprising in colonial Kenya from 1952 to 1960
Operation Barras, the 2000 hostage rescue in Sierra Leone, was carried out by British Army paratroopers with SAS support
Source Wikipedia: Operation Barras
Operation Biting was carried out by C Company of the 2nd Parachute Battalion, British Army
Source Wikipedia: Operation Biting
Operation Nimrod, the 1980 Iranian Embassy siege in London, was ended by the Special Air Service of the British Army
Source Wikipedia: Operation Nimrod
Operation Palliser, the 2000 British military intervention in Sierra Leone, was led by British Army paratroopers
Source Wikipedia: Operation Palliser
The British Army fought the Second Anglo-Afghan War of 1878-1880, including the battles of Maiwand and Kandahar
The British Army fought the Boer republics' commandos in the 1899-1902 Second Boer War
Source Wikipedia: Second Boer War
The British Army fought the brief 1919 Third Anglo-Afghan War, after which Afghanistan gained full independence in foreign affairs
British Army regulars, alongside Canadian militia, defended the Canadas during the War of 1812
British Army and colonial forces fought the Ashanti in the 1900 War of the Golden Stool, the last of the Anglo-Ashanti Wars
British Army and colonial forces fought the Xhosa in the nine Cape Frontier Wars (Xhosa Wars) between 1779 and 1879