Pass in the Spīn Ghār (Safīd Kūh) Range on the border between Afghanistan and Pakistan.
About 33 mi (53 km) long, it has historically been the gateway for invasions of the Indian subcontinent from the northwest; it was traversed by Persians, Greeks, Mughals, and Afghans from the north and by the British from the south. The Pashtun Afridi people of the Khyber area long resisted foreign control, but during the Second Anglo-Afghan War in 1879, the Khyber tribes came under British rule. It is now controlled by Pakistan.