In the First Line of BattleFrom its first major engagement at Harpers Ferry, Virginia, to the campaigns against Confederates in the swamps of occupied Louisiana, the 12th Illinois Volunteer Cavalry fought more than twenty battles in three theaters of combat. So great was the regiment's contribution to the Union victory that a monument at Gettysburg honors the unit for its place "in the first line of battle." The campaigns of the 12th Illinois reflect the larger shape of the