A really capable combined arms force can have a disproportionate impact on a small war. It can have much less effect in a large one. Discussing his article on Wars in a Fishbowl, Amos Fox talks to Peter about why Battalion Tactical Groups from the Russian army have had little success in Ukraine when all their experiences over the previous two decades had told them that BTGs were the sure-fire route to success. How you learn lessons, and understanding that rarely do lessons have permanent residence across every conflict, seems to be as important as identifying them in the first place if you want to design a force with greatest utilty across conflicts. It's not just evident in how Russia learns lessons though.