Ben Ali, Zine el Abidine 1936- . Tunisian politician, president from 1987. After training in France and the USA, he returned to Tunisia and became director-general of national security. He was made minister of the interior and then prime minister under the ageing president for life, Habib Bourguiba , whom he deposed in 1987 by a bloodless coup with the aid of ministerial colleagues. He assumed the presidency, promising greater democracy through constitutional reform.