Helmut Heinrich Waldemar Schmidt (German pronunciation: [ˈhɛlmuːt ˈha͡ɪnʁɪç ˈvaldəmaːɐ ˈʃmɪt]; 23 December 1918 – 10 November 2015) was a German statesman and member of the Social Democratic Party of Germany (SPD), who served as Chancellor of the Federal Republic of Germany from 1974 to 1982. He retired from Parliament in 1986, after clashing with the SPD's left wing, who opposed him on defence and economic issues. In 1986 he was a leading proponent of European monetary union and a European Central Bank.