The Ukraine war has demonstrated that a well-supplied, well-motivated defender can effectively disrupt or even defeat a clearly superior adversary. If nothing else, this defender can significantly increase the cost and length and duration of a military conflict to the detriment of the attacker. Russian officers keep getting killed because they don't trust their junior subordinates to give them an accurate picture of the battlefield. They're being hounded by Moscow to [share] what's going on, and they only trust their own judgment. The success of [breaking up larger formations into smaller ones] is predicated on active, adaptive combat leaders who are willing to use their own initiative during the rapid evolution of combat operations. To illustrate that, we have a saying in the U.S. military that fundamentally describes the cultural difference between the Chinese and Russian militaries and the U.S. military. And every military officer learns it from the very beginning of his tr