Trial of Iva Ikuko Toguri D'Aquino (July 4, 1916 - September 26, 2006) was an American who participated in English-language radio broadcasts transmitted by Radio Tokyo to Allied soldiers in the South Pacific during World War II on The Zero Hour radio show. She was subsequently charged by the United States Attorney's Office with eight counts of treason. Her 1949 trial resulted in a conviction on one count, for which she spent more than six years out of a ten-year sentence in prison.