> That seems quite unwarranted, if two generals fight then success is correlated with the quality of general but not solely determined by it, often the better general will lose simply because the opponent has more resources.

Right. Indeed, efforts have been made to quantify this that take into account the contribution of other factors (e.g., T.N. Dupuy’s Quantified Judgement Method of Analysis which check later as developed into the Tactical Numerical Deterministic Model.) And Napoleon seems to have come out pretty outstanding, as I recall, in analysis using the QJMA.