Former president Gen (r) Pervez Musharraf has said that Kashmir is a major dispute between the two neighbouring nuclear nations, which should be resolved. Addressing a seminar held on Monday at the Committee House of the Parliament building in London, he said Pakistan was a main part in the ongoing war on terror and the nation had sacrificed a lot in this connection. He said world must to differentiate between Pakhtoons and Taliban, because all Pakhtoons were not Taliban. He further said Taliban had entered in Pakistan through Afghanistan where several groups were active in war business. Earlier, pandemonium was created when London-based PML-N activists staged a demonstration and chanted anti-Musharraf slogans outside the Parliament where the former president was due to deliver his speech. To tackle the situation, police was called in which forced the protesters to leave the spot. During the process, police officials tried to bar leading British lawmaker Lord Nazir Ahmed from entering the Committee House, but he managed to get in and registered his protest.