War is evil, hated by common people. So the man who acts accord with the principle of Tao will not employ it.
The sage uses the arm cautiously and calmly till it's no alternative. He won't be high-blown even in victory. The man who indulges in war and victory is bloodthirsty. The bloodthirsty one can not achieve his ambition in the world.
To join the battle in funeral rite because the war will kills multitudes of men. The victor in battle has his place rightly in truth.