Massu became chairman of the Public Safety Committee and one of the leaders of the revolt.[4] The putschists threatened to conduct an assault on Paris, involving paratroopers and armoured forces based at Rambouillet, unless Charles de Gaulle was placed in charge of the Republic.[5] De Gaulle did so under the precondition that a new constitution would be introduced creating a powerful presidency in which a sole executive, the first of which was to be de Gaulle, ruled for seven-year periods. These changes were introduced and the Fifth Republic was born.