Pakistan's Interior Minister Aftab Sherpao has left for London for a three-day visit, officials said. During his visit, he will also address a British anti-terrorism think-tank. Before his departure for London, Sherpao told reporters that Pakistan has played a pivotal role in the war against terrorism and the whole world recognized it. "Britain is an important part in this war," he added. Sherpao will hold talks with his British counterpart for cementing cooperation between the two countries for curbing terrorism.