The Third Force (French: Troisième Force) was a political alliance during the Fourth Republic (1947–1958) which gathered the French Section of the Workers' International (SFIO) party, the Democratic and Socialist Union of the Resistance (UDSR), the Radicals, the Popular Republican Movement (MRP) and other centrist politicians who were opposed to both the French Communist Party (PCF) and the Gaullist movement. The Third Force governed France from 1947 to 1951, succeeding the tripartisme alliance between the SFIO, the MRP and the PCF. The Third Force was also supported by the National Centre of Independents and Peasants (CNIP), which succeeded in having its most popular figure, Antoine Pinay, named Prime Minister in 1952, a year after the dissolving of the Third Force coalition.