The British have had military conflicts with Afghanistan in five different wars, sometimes fighting against or allied with the Afghans:
- First Anglo-Afghan War (1839-1842)
- Anglo-Persian War (1856-1857)*
- Second Anglo-Afghan War (1878-1880)
- Third Anglo-Afghan War (1919)
- War in Afghanistan (2001)**
* The British East India Company and Afghanistan joined forces to defeat the Qajar Dynasty of Persia in Herat.
** Also known as the Fourth Anglo-Afghan War; the Afghanistan government joined forces with the UK along with several other countries including the United States in a joint effort to combat the Taliban régime.