What would you say if kids fight each other with automatic weapons? It’s a reality already.
Nothing is ever resolved by war itself. Take a look at all of humanity’s history. The function of war is to compel people to contemplate the true nature of what is happening. This, however, does not mean that war is unnecessary. It is necessary to fight. If we have been debased to such a level where our egoism’s opposition with other egoistic forces generates a war, then we are obligated to do everything we can to counteract the threat to our physical existence. However, at the same time, we have to understand that the situation can be corrected and changed only on a higher level, on the level of the forces that have elicited the emergence of the war.