In 1965, in an occasion marking the first time in the 20th century that the people of France went to the polls to elect a president by direct ballot, de Gaulle won re-election with a 55% share of the vote, defeating François Mitterrand. Meanwhile, the Algerian War went on raging, with de Gaulle progressively adopting a stance favouring Algeria's independence. This was interpreted by his supporters in 1958 as a form of treason, and part of them, who organized themselves in the OAS terrorist group, rebelled against him during the Algiers putsch of 1961. But De Gaulle managed to put an end to the war by negotiating the Evian Agreements of March 1962 with the FLN.