Adalet Partisi. Major Turkish political party of center-right 1961–80. Seen as the successor to the outlawed Democratic Party (Demokrat Parti). Emphasized economic development and traditional values. Led until 1964 by Ragip Gumuspala and then for the remainder of its existence by Suleyman Demirel (prime minister 1965–71, 1974–78, and 1979–80). Was a coalition of industrialists, large landholders, small traders, and peasants whose major opposition was the center-left Republican People's Party (Cumhuriet Halk Partisi). Discouraged the membership of Islamists such as Necmettin Erbakan. Political violence and economic crisis forced a miltary coup in 1980 that outlawed all political parties.