Kurram was declared as an agency in 1892 and was made part of Pakistan in 1947. Kurram Agency comprises three sub divisions including Upper Kurram (almost 80% Shia), Central Kurram(95% Sunni) and Lower Kurram(80% Sunni). The total area of the Agency is 3,380 square kilometers. The total population of the agency is estimated to be around 935,000. Kurram is surrounded by Afghanistan on three sides. In the south it borders North Waziristan. In the east, the agency borders the Hangu district of Khyber-Pakhtunkhwa, Orakzai Agency and Khyber Agency. In the north, the agency borders the Afghan province of Nangarhar where the famous Al-Qaida base Tora Bora is situated. Kurram Agency has a history of sectarian tension and clashes between the Sunni and Shia sects which resulted in thousands of deaths on both sides. Major Shia militant groups include Hizbullah, Mehdi Militia and Hydri Taliban. Major Sunni militant group include TTP, Tehrik e Taliban Islami Pakistan (TTIP) of Fazal Saeed Haqqani and Haqqani Network. Fazal Saeed Haqqani has separated from TTP and formed TTI P.