Not to be confused with the inhabitants of the old Gorkha Kingdom only, the Gurkhas are also military units in the British or the Indian army (where they are known as Gorkhas) enlisted in Nepal and India. Their history goes back to the Anglo-Gorkha War and the Sugauli Treaty of 1816. It allowed the British East India Company to recruit men from the Gorkha kingdom hills to serve as mercenaries.