from Wikipedia Kabul:
Kābul (Persian: کابل, IPA: [kə'bʊl]) is the capital and largest city of Afghanistan, with an estimated population of approximately three million. It is an economic and cultural centre, situated 5,900 feet (1,800 m) above-sea-level in a narrow valley, wedged between the Hindu Kush mountains along the Kabul River. Kabul is linked with Ghazni, Kandahar, Herat and Mazar-e Sharif via a long beltway (circular highway) that stretches across the country. It is also linked by highways with Pakistan to the southeast and Tajikistan to the north.
Kabul's main products include munitions, cloth, furniture, and beet sugar, but, since 1978, a state of nearly continuous war has limited the economic productivity of the city.
Kabul is over 3,000 years old. Many empires have long fought over the city, due to its strategic location along the trade routes of Southern and Central Asia. In 1504, Babur captured Kabul and used it as his headquarters until 1526, before his conquest of India. In 1776, Timur Shah Durrani made it the capital of modern Afghanistan. The population of the city is predominantly Persian-speaking.