In 1915 the Mohmands declared a holy war or jihad against the British.[1] The blockade began after a number of Mohmand raids into Peshawar, they sent large numbers of lashkars (In Mughal and Urdu culture the word is used to describe a "swarm like formation in any army") at British positions. The most important engagement occurred on 15 November 1916, at Hafiz Kor, when a Mohmand force was defeated. The blockade was eventually lifted in July 1917 when the Mohmands submitted.[2][1]