| Date | Engagement | Military Units | Losses | Victor |
|---|
| April 12-14 | Fort Sumter, SC | Confederate artillery, Union garrison | None | CSA |
|---|
| April 15 | Evacuation of Fort Sumter, SC | Union garrison | Two Union soldiers killed, four wounded by accidental explosion | N.A. |
|---|
| April 19 | Baltimore Riots, MD | MA 6th, PA 26th vs secessionist crowd | 4 Union soldiers killed, 12 civilians killed, hundreds wounded | USA |
|---|
| May 10 | St. Louis Riots, MO | Union forces vs secessionist crowd | 4 Union soldiers killed, 3 prisoners, 28 civilians killed | USA |
|---|
| May 18-19 | Sewell's Point, VA | Union naval squadron vs Confederate shore artillery | 10 total | inconclusive |
|---|
| May 29- June 1 | Aquila Creek, VA | Union naval squadron vs Confederate shore artillery | 10 total | inconclusive |
|---|
| June 1 | Fairfax Court House, VA | detachments from CSA & USA armies | 8 on each side, 1 each killed | inconclusive |
|---|
| June 3 | Philippi, WVA | Union Dept of Ohio (McClellan), CSA infantry | Union 4, CSA 26 (killed or wounded) | USA |
|---|
| June 10 | Big Bethel, VA | Union: 3,500 (Butler) , CSA 1,400 (Magruder) | Union 18-killed 53-wounded, CSA: 1-K 9-W | CSA |
|---|
By my count these total to about 200 casualties including 35 deaths.