In the early years of the Fourth Republic, the party returned to the moderate left under the leadership of Pierre Mendès-France, a strong opponent of French colonialism, whose premiership from 1954 to 1955 saw France's withdrawal from Indochina and the agreement for French withdrawal from Tunisia. Mendès-France, a very popular figure who helped renew the Radical-Socialist Party after its discredit, was indeed elected on the pledge to stop Indochina War (1946–1954).