The PPP dominated the politics of Pakistan during the 1970s, suffering a temporary decline during the military dictatorship of Zia-ul-Haq. After the re-establishment of democracy in 1988 following Zia's death, a two-party system developed, consisting of the People's Party and the Islamic Democratic Alliance, later succeeded by the Nawaz League. The party served as the principal opposition to the Pervez Musharraf-led military government from 1999 to 2008.