"In reality, it si more fruitful to wound than to kill. While the dead man lies still, counting only one man less, the wounded man is a progressive drain upon his side"

This quote by B. H. Liddell Hart suggests that it is more helpful to wound an enemy than to kill them. While eliminating an opponent soldier eliminates them from the battlefield, an injured soldier needs resources to be eliminated from the enemy's side in order to care for them. This can be a drain on the enemy's resources, as they need to divert resources away from the battlefield in order to look after the wounded soldier. Furthermore, an injured soldier can be a source of morale loss for the opponent, as they should witness the suffering of their pal. This quote recommends that injuring an opponent can be more efficient than killing them, as it can be a drain on the enemy's resources and morale.