. . . . "15th Iowa Volunteer Infantry Regiment"@en . "The 15th Regiment Iowa Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War."@en . . . . . . . . . "--02-22"^^ . . . . . . "Iowa state flag"@en . . . "The 15th Regiment Iowa Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War."@en . "15"^^ . . .