The history of Hazara people in Pakistan dates back to the 1840s, when Hazara tribesmen from Hazarajat began migration to colonial India because of persecution by Pashtuns. Many Hazaras were enlisted in the British Indian Army, beginning with enlistment into the Presidency armies during the First Anglo-Afghan War. The mass-migration and permanent settlements started in the 1890s when Emir Abdul Rahman Khan started persecuting the Hazaras of Afghanistan. The majority of Hazara are Shi'as with a sizable Sunni Muslims minority. Pakistan is home to an estimated 10% Shia Muslim population. Sectarian violence in Pakistan started in 1980s.