When do weaknesses become strengths... if we are to use a classical example such as that of the American Revolutionary?? Or if we adapt a pure utilitistic perspective where costs and rewards are enumerated beforehand. In yet another instance your side completely sabotages its war effort if you lose a principled commanding appointee to which there is no replaceable complement. I think almost every drawn out war needs good leaders for moral support, to drive the conflict and inspire the civilians. As a final word, one cannot discount supervisory intervention on part of an omnipotent, omniscient, omnipresent Creator God who answers the cries of men in his one Son, Jesus who died on the cross and paid the price for our sins.