Dost Mohammad Khan

Dost Mohammad Khan Barakzai (Pashto/; December 23, 1792 – June 8, 1863), nicknamed the Amir-i Kabir, was the founder of the Barakzai dynasty and one of the prominent rulers of Afghanistan during the First Anglo-Afghan War. With the decline of the Durrani dynasty, he became the Emir of Afghanistan in 1826. An ethnic Pashtun, he belonged to the Barakzai tribe. He was the 11th son of Payinda Khan, chief of the Barakzai Pashtuns, who was killed in 1799 by King Zaman Shah Durrani.

At the beginning of his rule, the Afghans lost their former stronghold of Peshawar Valley in March 1823 to the Sikh Khalsa Army of Ranjit Singh at the Battle of Nowshera. The Afghan forces in the battle were led by Azim Khan, half-brother of Dost Mohammad Khan. By the end of his reign, he had reunited the principalities of Kandahar and Herat with Kabul. Dost had ruled for a lengthy 36 years, a span exceeded only by Zahir Shah more than a century later.

A brilliant strategist, and ruthless fighter from a young age, Dost Mohammad was regarded as one of the greatest rulers in the history of Afghanistan, his myriad of campaigns had successfully forged the cities of Kabul, Kandahar, and Herat into one state, which all his predecessors under the exception of Ahmad Shah Durrani had failed to do so. Provided by Wikipedia