sentences:  "Biscayne" took part in the invasion of Iwo Jima from 19 February 1945 to 4 March 1945 as flagship of the transport screen.she carried out similar duties during Operation Iceberg, the landings on Kerama Retto on 26 March 1945 and on Okinawa on 1 April 1945.She remained off Okinawa, supporting U.S. operations during and after the Okinawa campaign, until 1 July 1945, during which time she served as flagship for the occupation of Iheya and Aguni Islands between 3 June 1945 and 9 June 1945.