General Zia-ul Haq, who succeeded Bhutto as the Head of State, attempted to reverse the traditional antipathy between Sikhs and Muslims arising from the partition violence by restoring Sikh shrines in Pakistan and opening them for Sikh pilgrimage. The expatriate Sikhs from England and North America that visited these shrines were at the forefront of the calls for Khalistan. During the pilgrims' stay in Pakistan, the Sikhs were exposed to Khalistani propaganda, which would not be openly possible in India. The ISI chief, General Abdul Rahman, opened a cell within ISI with the objective of supporting the "[Sikhs']...freedom struggle against India". Rahman's colleagues in ISI took pride in the fact that "the Sikhs were able to set the whole province on fire. They knew who to kill, where to plant a bomb and which office to target." General Hamid Gul argued that keeping Punjab destabilized was equivalent to the Pakistan Army having an extra division at no cost. Zia-ul Haq, on the other hand, consistently practised the art of plausible denial. The Khalistan movement was brought to a decline only after India fenced off a part of the Punjab border with Pakistan and the Benazir Bhutto government agreed to joint patrols of the border by Indian and Pakistani troops.