Leading in battle is sometimes more important than commanding.
“We have to start not with tactics or the physics of shouting orders, but with cultural expectations. First, we need to establish some foundations here. First, in a pre-modern battle (arguably in any battle) morale is the most critical element of the battle; battles are not won by killing all of the enemies, but by making the enemies run away. They are thus won and lost in the minds of the soldiers (whose minds are, of course, heavily influenced by the likelihood that they will be killed or the battle lost, which is why all of the tactics still matter).”