Quoted from the book 3

The Long Campaign should have ended with a long period of peace. But there is no rule stating that a long war must be followed by a long period of peace. [...]

But what does peace mean in this part of the world? It’s a break in which you have time to muster a new army. The moment a truce is signed, all sides start to search for men, weapons, promises of loyalty and plenty of money. They start to pillage, even start other wars, so they can gather enough money for the wars to come. But mainly promises. It may seem curious, even funny, but promises have killed more people than the weapons themselves.