Fantasy Flight Games have posted a new Battles of Westeros preview article examining to role and use of Commanders and Leadership Cards.
From their website:
Battles of Westeros will be on store shelves very soon, so it’s time to take a quick look at the different kinds of strategies that players can employ as they lead their House into battle. War is a brutal affair, and it takes expert leaders to navigate their men through the carnage of the battlefield. In Battles of Westeros this kind of leadership is represented by commanders and Leadership cards. Let us take a closer look at how to use them.