LONDON (Agencies) - British Foreign Secretary David Miliband said Thursday the notion of a "war on terror" was "misleading and mistaken", in an outspoken critique of a key policy of outgoing US President George W Bush. Writing in the Guardian, Miliband said the phrase gave the idea of a unified enemy where none existed, and also encouraged a primarily military response to problems that top generals admitted the West could not "kill its way out of". The article appears to be a comprehensive attempt to discard what was a defining mission of the Bush administration, which comes to an end on Tuesday. The foreign secretary wrote that since 9/11 the phrase "war on terror" had "defined the terrain" when it came to tackling terrorism and that although it had merit, "ultimately, the notion is misleading and mistaken. "The idea of a 'war on terror' gave the impression of a unified, transnational enemy, embodied in the figure of Osama bin Laden and al-Qaeda." "The reality is that the motivations and identities of terrorist groups are disparate." He added: "The more we lump terrorist groups together and draw the battle lines as a simple binary struggle between moderates and extremists, or good and evil, the more we play into the hands of those seeking to unify groups with little in common." Miliband rejected the notion that fighting violent extremism could only be done by military means. "As (US) General (David) Petraeus said to me and others in Iraq, the coalition there could not kill its way out of the problems of insurgency and civil strife," he wrote. He argued that only cooperation between states could break up terror networks, saying if India and Pakistan could resolve their dispute over Kashmir it would deny extremists in the region one of their main calls to arms. Miliband added that democratic countries must not abandon their values, citing the US military detention camp at Guantanamo Bay on Cuba. "We must respond to terrorism by championing the rule of law, not subordinating it, for it is the cornerstone of the democratic society," he wrote. "We must uphold our commitments to human rights and civil liberties at home and abroad. That is surely the lesson of Guantanamo and it is why we welcome President-elect Obama's commitment to close it." Meanwhile, in his speech at the Taj Mahal hotel in Mumbai, Miliband called on Pakistan to show "zero tolerance" towards militant groups based in the country that have been blamed for the Mumbai terror attacks. "We know the attacks were carried out by Laskhar-e-Taiba operating from the territory of Pakistan. "There must be zero tolerance towards such organisations," Miliband said. Miliband emphasised that Britain was at risk of attack from similar extremists. "It is a big issue for us in Britain too, because the majority of terror plots that Britain faces are linked backed to Pakistan," he said. In 2005, 52 people were killed when four Islamists - motivated in part by Britain's involvement in the 2003 US-led invasion of Iraq - blew themselves up on London's public transport network. Copycat attacks were thwarted two weeks later. In the attacks on Mumbai, 32 people were killed at the Taj hotel, while others died at another hotel, the main train station, a restaurant and a Jewish cultural centre. "This was an attack on a horrific scale, of a horrific length," Miliband said. "A strike at the heart of one of the world's most plural, diverse and tolerant societies." In New Delhi on Tuesday, Miliband restated London's view that the Islamabad government did not direct the attacks, though India's prime minister has said the Mumbai militants had the support of "some official agencies" in Pakistan. Pakistan strongly rejects such charges, and said it is rooting out militants within its borders. In New Delhi, the Indian Ministry of External Affairs on Thursday reacted to British Foreign Secretary David Miliband's comments on Jammu and Kashmir, saying that he should not give unsolicited advice. India does not share London's views and does not need "unsolicited advice" on its internal issues, the Ministry said. "Foreign Secretary Miliband is entitled to his views which are clearly his own and evolving. India is a free country and even if we do not share his views he is free to express them. However, we do not need unsolicited advice on internal matters of India like J&K," said Vishnu Prakash, Joint Secretary, Ministry of External Affairs (MEA), told reporters while commenting on the remarks by British Foreign Secretary David Miliband who sought to link non-resolution of Kashmir issue to terrorism in India. "We do not need unsolicited advice on the internal issues of India like Jammu and Kashmir," Prakash said.