The battleship counterfactual briefly gives way to a comparison between tanks and anti-tank missiles. A weapon's success depends partly on whether the force it faces uses its equipment according to doctrine. Militaries can rehearse sound methods in peacetime and then discard them in war because they assume an opponent is less capable. They then relearn their own lessons through bloodshed, making doctrine and operational discipline as important to effectiveness as a weapon's nominal advantages.
Notable Point · 7:57-8:44
Why militaries relearn doctrine in war
Peacetime doctrine can be abandoned when forces underestimate an opponent, forcing militaries to relearn rehearsed lessons through wartime losses.