1882-1975. Irish nationalist politician, prime minister of the Irish Free State/Eire/Republic of Ireland 1932-48, 1951-54, and 1957-59, and president 1959-73. Repeatedly imprisoned, he participated in the Easter Rising 1916 and was leader of the nationalist Sinn Fein party 1917-26, when he formed the republican Fianna Fail party; he directed negotiations with Britain 1921 but refused to accept the partition of Ireland until 1937. He was born in New York, the son of a Spanish father and an Irish mother, and sent to Ireland as a child, where he became a teacher of mathematics. He was sentenced to death for his part in the Easter Rising, but the sentence was commuted, and he was released under an amnesty 1917. In the same year he was elected member of Parliament for E Clare, and president of Sinn Fein. He was rearrested May 1918, but escaped to the USA 1919. He returned to Ireland 1920 and directed the struggle against the British government from a hiding place in Dublin. He authorized the negotiations of 1921, but refused to accept the ensuing treaty which divided Ireland into the Free State and the North. Civil war followed. De Valera was arrested by the Free State government 1923, and spent a year in prison. He formed a new party, Fianna Fail 1926, which secured a majority in 1932. De Valera became prime minister and foreign minister of the Free State, and at once abolished the oath of allegiance and suspended payment of the annuities due under the Land Purchase Acts. In 1938 he negotiated an agreement with Britain, under which all outstanding points were settled. Throughout World War II he maintained a strict neutrality, rejecting an offer by Churchill 1940 to recognize the principle of a united Ireland in return for Eire's entry into the war. He resigned after his defeat at the 1948 elections but was again prime minister in the 1950s, and then president of the republic. He was sentenced to death for his part in the Easter Rising, but the sentence was commuted, and he was released under an amnesty 1917. He directed the negotiations of 1921 but refused to accept the ensuing treaty that divided Ireland into the Free State and the North. Civil war followed. De Valera formed a new party, Fianna Fail 1926, which secured a majority in 1932. De Valera became prime minister and foreign minister of the Free State. Throughout World War II he maintained a strict neutrality, rejecting an offer by Churchill 1940 to recognize the principle of a united Ireland in return for Eire's entry into the war. He resigned after his defeat at the 1948 elections but was again prime minister in the 1950s and then president of the republic.