I see. Well, war can be unavoidable sometimes. But a rebellion would mean a significant amount of people aren't happy with his leadership. In that case...

[ He takes another bishop, one that is a different color, and sets it next to the other one, also close to the king. ]

This King might benefit from a second adviser. This way, he will be able to hear counsel from contrasting perspectives, and make his decisions based on more comprehensive information.