1. The choice of positions and defensive lines of battle.
2. The offensive in a defensive battle.
3. The different orders of battle, or the grand maneuvers proper for the attack of the enemy's line.
4. The collision of two armies on the march, or unexpected battles.
5. Surprises of armies in the open field.
6. The arrangements for leading troops into battle.
7. The attack of positions and intrenched camps.
8. Coups de main.
All other operations, such as relate to convoys, foraging-parties, skirmishes of advanced or rear guards, the attack of small posts, and any thing accomplished by a detachment or single division, may be regarded as details of war, and not included in the great operations.