Anger does not make history. Power does. And power may be supplemented by anger, but it derives from more fundamental realities; geography, demographics, technology, and culture.
Strategy is something that emerges from reality, while tactics might be chosen.
War is an extraordinary condition to be in - to be, for example, in the combat information center of a warship [and behaving] as though you were merely processing credit card applications. [Instead,] the information you're processing is that an incoming missile is 15 kilometers away, now 10 kilometers away, now 5 kilometers. You have to separate yourself psychologically from the fact that your mortal existence may well end. That is the ancient reality of war.