Helmut Heinrich Waldemar Schmidt is a German Social Democratic politician who served as Chancellor of West Germany from 1974 to 1982. Prior to becoming Chancellor, he had served as Minister of Defence. As Minister of Finance, he gained credit for financial policies that consolidated the Wirtschaftswunder, giving Germany the most stable currency and economic position in the world. He had also served briefly as Minister of Economics and as acting Foreign Minister. As Chancellor, he focused on international affairs, seeking "political unification of Europe in partnership with the United States". He was an energetic diplomat who sought European co-operation and international economic co-ordination. He was re-elected chancellor in 1976 and 1980, but his coalition fell apart in 1982 with the switch by his coalition allies, the Free Democratic Party. He retired from Parliament in 1987, 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.