Leader of PML(N) Mian Nawaz Sharif said President Musharraf's policy of war against terror should be reviewed. During a meeting with US Assistant Secretary of State Richard Boucher, Nawaz Sharif said that war against terror should get approval from the parliament. He also expressed reservation over the operation underway in tribal areas and urged that negotiations should be used instead of force to resolve the issue. Nawaz protested the US-led coalition attacks in Pakistan's tribal areas and termed these attacks against sovereignty of the country. Nawaz added that he is trying to persuade his coalition party PPP to impeach unpopular President Musharraf.