Abdur Rahman Khan also known by his epithets, The Iron Amir, was Amir of Afghanistan from 1880 to his death in 1901. He is known for uniting the country after years of internal fighting and negotiation of the Durand Line Agreement with British India.

The Durand Line, also known as the Afghanistan–Pakistan border, is a 2,611-kilometre (1,622 mi) international border between Afghanistan and Pakistan in South Asia. The western end runs to the border with Iran and the eastern end to the border with China.