Yaghistan (Urdu: یاغستان; "The land of the rebellious and hostility")[1][2] was a key frontier region between Afghanistan and British India.[3]
This was an area where rebels lived, on either side of the Durand Line, roughly corresponding to the later tribal areas of Pakistan.[2][3]
The term, in use since at least 1868, was also used in Afghanistan where Amir Abdur Rehman characterized eastern Pashtun population as "Unruly" and "Rebels".[1]