"--08-25"^^ . . "Battle of Hartville Battle of Port GibsonBattle of Champion HillBattle of Big Black River BridgeSiege of VicksburgSiege of JacksonSiege of Fort BlakelyBattle of Spanish Fort"@en . "Iowa state flag"@en . . . "21"^^ . . . "The 21st Regiment Iowa Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War."@en . . . "0.577"^^ . . "21st Iowa Volunteer Infantry Regiment"@en . "The 21st Regiment Iowa Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War."@en .