History 370 Regimental histories Soldiers 85 Campaigns 75 Participation, African American 21 African American soldiers 17 Military life 16 more ... Gettysburg, Battle of, Gettysburg, Pa., 1863 15 Social aspects 11 Generals 10 Cavalry operations 9 Artillery operations 7 History, Military 7 Officers 7 Gettysburg Campaign, 1863 6 Militia 6 African Americans 5 Participation, Irish American 5 Armed Forces 4 Irish American soldiers 4 Social conditions 4 Spotsylvania Court House, Battle of, Va., 1864 4 Appomattox Campaign, 1865 3 Hospitals 3 Medical care 3 Prisoners and prisons 3 Prisoners of war 3 African American troops 2 Armies 2 Army of the Potomac 2 less ...