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As the fallout from Nov'08's bloody siege in Mumbai focuses the world's attention on Pakistan's ability to control insurgents within its own borders, Al Jazeera investigates Pakistan's role in the so-called 'war on terror'. In this exclusive 4 part series, Rageh Omaar travels from the capital, Islamabad, to the tribal heartlands to chart the spread of suicide bombings and the escalation of violence that has turned Pakistan into a war zone. Pakistan's War: The Battle Within Rageh Omaar revisits the scene of the military assault on the Red Mosque, which he witnessed in July 2007. Rageh and his team had been the last television crew inside the mosque before the siege began and filmed the last interview with mosque leader Abdul Rashid Ghazi before his death. Rageh learns that the showdown for control of the Red Mosque marked a turning-point in Pakistan's war with the insurgents - the moment when the Taliban-backed insurgency moved from the tribal areas o...