Nobody is so poor as not to leave any legacy behind when he dies, said Pascal. But what inheritance of war (also involving the problem of its heir) is left behind by the soldier who keeps writing his notes and sending letters from the front line when he faces something unimaginable – dying by cholera? What else invisibly stands behind such a soldier’s urgent need: is it to bear witness, and is it to become an opportunity to accumulate other affective (of the soldier’s anger, rage, hatred, anguish, pain, fear and bitterness) archives of the Balkan Wars? Is this witnessing a condition in itself for penetrating the other, the invisible reality of the fighting man’s world, so as to problematise the other heritage of this war (the sensitive man who has let himself be affected) and its stakes (the questionable values of the modern and traditional)? This article searches answers to these questions.