A circumstance, such as a battle, where a large amount of blood is likely to be spilled through violence.
The archaic practice of treating illness by removing some blood, believed to be tainted, from the stricken person.
The diminishment of any resource with the hope that this will lead to a positive effect.
The waging of war or armed conflict against an enemy.
Military operations of some particular kind e.g. guerrilla warfare.
To lead a military life; to carry on continual wars.