How is this going to affect the laws of war? Hypothetically speaking, in case of wanton killing of civilians, who's going to be held responsible? The engineers

How is this going to affect the laws of war? Hypothetically speaking, in case of wanton killing of civilians, who's going to be held responsible? The engineers who designed it? The maintenance crew who launched it? The general in charge of that particular division or branch? The minister? Furthermore, with the emergence of AI, do we even know the algorithms actually used to make such decisions?