Across
- 3. - Compulsory recruitment for military service.
- 4. - Soldier posted on guard duty.
- 8. - Surprise attack from a concealed position.
- 9. - President of the United States during the Civil War.
- 11. - Area where a battle is fought.
- 12. - Slang for secession
- 14. - A low protective wall along the edge of a roof or fortification.
- 15. - Ricochet or bounce back, often used metaphorically.
- 17. - Hard biscuit eaten by soldiers.
- 19. - Open area surrounded by buildings, often found in military camps.
- 20. - Person who secretly collects and reports information on enemy activities.
- 21. - To strengthen a place with defensive works.
Down
- 1. - About to happen, often in the context of battle.
- 2. - Pro-Union guerrilla fighter.
- 5. - Long, narrow ditches used in fortifications and battles.
- 6. - Guarding or accompanying for protection.
- 7. - List of soldiers in a unit.
- 10. - Group of artillery guns.
- 11. - Temporary promotion for extraordinary service.
- 13. - Border state with divided loyalties.
- 16. - An early type of rapid-fire weapon.
- 18. - Soldier who serves in the cavalry.