United States Regulars and Volunteers in the Eastern Theater of the Civil War

Units that are not listed served outside the Eastern Theater. Some units are still under construction.

Infantry

Artillery

United States Colored Troops

2nd Infantry Regiment

3rd Infantry Regiment

4th Infantry Regiment

6th Infantry Regiment

7th Infantry Regiment

8th Infantry Regiment

10th Infantry Regiment

11th Infantry Regiment

12th Infantry Regiment

14th Infantry Regiment

17th Infantry Regiment

1st United States Artillery

1st Infantry Regiment

4th Infantry Regiment

5th Infantry Regiment

6th Infantry Regiment

7th Infantry Regiment

8th Infantry Regiment

9th Infantry Regiment

10th Infantry Regiment

19th Infantry Regiment

22nd Infantry Regiment

23rd Infantry Regiment

24th Infantry Regiment

27th Infantry Regiment

28th Infantry Regiment

29th Infantry Regiment

30th Infantry Regiment

31st Infantry Regiment

36th Infantry Regiment

37th Infantry Regiment

38th Infantry Regiment

39th Infantry Regiment

40th Infantry Regiment

41st Infantry Regiment

43rd Infantry Regiment

45th Infantry Regiment

107th Infantry Regiment

109th Infantry Regiment

114th Infantry Regiment

115th Infantry Regiment

116th Infantry Regiment

117th Infantry Regiment

118th Infantry Regiment

122nd Infantry Regiment

127th Infantry Regiment

Battery F
Battery G

2nd United States Artillery

Battery B

Cavalry

3rd United States Artillery

1st Cavalry Regiment

2nd Cavalry Regiment

4th Cavalry Regiment

5th Cavalry Regiment

6th Cavalry Regiment

Battery C

Battery E

Battery L

4th United States Artillery

Battery A

Battery B

Battery C

Battery D

Battery G

Engineers

5th United States Artillery

1st Battalion Engineers

Battery B

Battery C

Battery D

Battery I

Battery K

Battery L

Battery M

United States Volunteers

1st Sharpshooters Regiment -

2nd Sharpshooters Regiment -

1st United States Veteran Infantry

2nd United States Veteran Infantry

3rd United States Veteran Infantry