The surrounding Kunar Province lies near the historic routes connecting Central Asia, India, and Iran, such as the Silk Road and the Grand Trunk Road through the Khyber Pass, as well as routes through the Hindu Kush mountains. Asadabad lies at the confluence of the two major rivers of the area, the Kunar and the Pech. The region would have come under the borders of various empires of the ages, including the Achaemenid Persians, the Greco-Bactrian Kingdom, etc. It was very close to the paths Alexander the Great passed by on his way from conquering Persia to invading India. Asadabad is also on the eastern boundary of what was Kafiristan - part of Afghanistan not converted to Islam until the 1890s.