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ISLAMABAD, PAKISTAN: Pakistani Prime Minister Nawaz Sharif (R) meets 03 March 1993 at his residence in Islamabad with Afghan President Burhanuddin Rabbani (C), leader of the Jamiat-i-Islami (Islamic Society) party, and Rabbani's rival Afghan warlord Gulbuddin Hekmatyar, leader of the fundamentalist Hezb-i-Islami (Islamic Party), during the Afghan peace talks. AFP PHOTO SAEED KHAN (Photo credit should read SAEED KHAN/AFP via Getty Images)

ISLAMABAD, PAKISTAN:  Pakistani Prime Minister Nawaz Sharif (R) meets 03 March 1993 at his residence in Islamabad with Afghan President Burhanuddin Rabbani (C), leader of the Jamiat-i-Islami (Islamic Society) party, and Rabbani's rival Afghan warlord Gulbuddin Hekmatyar, leader of the fundamentalist Hezb-i-Islami (Islamic Party), during the Afghan peace talks.  AFP PHOTO SAEED KHAN (Photo credit should read SAEED KHAN/AFP via Getty Images)

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ISLAMABAD, PAKISTAN: Afghan Prime minister Gulbuddin Hekmatyar (R) chats with Pakistani fundamentalist leader Qazi Hussain Ahmed, head of the Jamaat-i-Islami party, 17 August 1993 in Islamabad. Hekmatyar, leader of Hezb-I-Islami (Islamic Party), is an ethnic Pashtun and Sunni Muslim extremist who had won large chunks of CIA and Pakistani aid during the 1979-1989 war against the Soviet Union. He bombed Kabul in the 1990s because he argued he was being excluded from power by the Tajik commander Ahmad Shah Masood. In 1966 Hekmatyar -- whose ideology was widely seen as a precursor of the Taliban movement -- was forced to flee the city when the militia overran it and he than found exile in Iran. AFP PHOTO SAEED KHAN (Photo credit should read SAEED KHAN/AFP via Getty Images)

ISLAMABAD, PAKISTAN:  Afghan Prime minister Gulbuddin Hekmatyar (R) chats with Pakistani fundamentalist leader Qazi Hussain Ahmed, head of the Jamaat-i-Islami party, 17 August 1993 in Islamabad. Hekmatyar, leader of Hezb-I-Islami (Islamic Party), is an ethnic Pashtun and Sunni Muslim extremist who had won large chunks of CIA and Pakistani aid during the 1979-1989 war against the Soviet Union. He bombed Kabul in the 1990s because he argued he was being excluded from power by the Tajik commander Ahmad Shah Masood. In 1966 Hekmatyar -- whose ideology was widely seen as a precursor of the Taliban movement -- was forced to flee the city when the militia overran it and he than found exile in Iran. AFP PHOTO SAEED KHAN (Photo credit should read SAEED KHAN/AFP via Getty Images)

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Hafiz Mohammad Saeed, (C), head of banned Pakistan charity organisation Jamaat-ud-Dawa (JuD), Chairman of the Defence of Pakistan Coalition Maulana Sami ul-Haq (2R), former Pakistani intelligence ISI chief Hamid Gul (R) and Sardar Attique, former prime minister of Pakistan-administered Kashmir and who presides over the All Jammu and Kashmir Muslim Conference (2L) join hands at an anti-US rally in Lahore on December 1, 2013. Thousands of people rallied in Pakistan's eastern city of Lahore in protest at continued US drone strikes in the country's troubled northwest. AFP PHOTO/Arif ALI (Photo credit should read Arif Ali/AFP/Getty Images)

Hafiz Mohammad Saeed, (C), head of banned Pakistan charity organisation Jamaat-ud-Dawa (JuD), Chairman of the Defence of Pakistan Coalition Maulana Sami ul-Haq (2R), former Pakistani intelligence ISI chief Hamid Gul (R) and Sardar Attique, former prime minister of Pakistan-administered Kashmir and who presides over the All Jammu and Kashmir Muslim Conference (2L) join hands at an anti-US rally in Lahore on December 1, 2013. Thousands of people rallied in Pakistan's eastern city of Lahore in protest at continued US drone strikes in the country's troubled northwest. AFP PHOTO/Arif ALI        (Photo credit should read Arif Ali/AFP/Getty Images)

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Hafiz Mohammad Saeed (C), chief of Pakistan's outlawed Islamic hardline Jamaat ud Dawa (JD), former Pakistani intelligence ISI chief Hamid Gul (4th L) and Chairman of the Defence of Pakistan coalition Maulana Sami ul-Haq (3rd L) join hands with other leaders as they attend an anti-India rally in Islamabad on September 6, 2013 to mark the countrys Defence Day. Thousands supporters of Pakistani Islamist groups and Defence of Pakistan coalition marched against India in Islamabad as they celebrated Defence Day, a commemorative day of the war fought against neighboring India in 1965. AFP PHOTO / AAMIR QURESHI (Photo credit should read AAMIR QURESHI/AFP/Getty Images)

Hafiz Mohammad Saeed (C), chief of Pakistan's outlawed Islamic hardline Jamaat ud Dawa (JD), former Pakistani intelligence ISI chief Hamid Gul (4th L) and Chairman of the Defence of Pakistan coalition Maulana Sami ul-Haq (3rd L) join hands with other leaders as they attend an anti-India rally in Islamabad on September 6, 2013 to mark the countrys Defence Day. Thousands supporters of Pakistani Islamist groups and Defence of Pakistan coalition marched against India in Islamabad as they celebrated Defence Day, a commemorative day of the war fought against neighboring India in 1965. AFP PHOTO / AAMIR QURESHI        (Photo credit should read AAMIR QURESHI/AFP/Getty Images)