Arana Osorio, Carlos (
kär'lōs ärä'nä ōsō'ryō), 1918-2003, president of Guatemala (1970-74). A conservative army colonel noted for his successes during an antiguerrilla campaign (1966-68), he was elected president on a law-and-order platform. He declared (Nov., 1970) a state of siege, which resulted in the suspension of civil liberties, and directed a vigorous campaign that brought a decline in guerrilla-terrorist activities. Political opponents, student radicals, and labor groups also were harassed and persecuted. He instituted a five-year development plan (1971-75) that had little effect on the country, and later served as ambassador to Nicaragua.