The Programme commun (or 'Common Programme') was a reform programme, signed 27 June 1972 by the Socialist Party, the French Communist Party and the centrist Radical Movement of the Left, which provided a great upheaval in the economic, political and military fields in France. That alliance opened a political repositioning for the left that lasted 30 years, contributing particularly to the election of François Mitterrand in the presidential election of 1981. Between 1981 and 1983, he began putting Programme commun into action.