Unless it came to a truly critical moment, they would never realize how foolish they were, nor would they know how to spell regret. However, by the time they did, it was often too late for regrets.
So, the actual situation would likely be that once the war was initiated, two to three Lords would be quickly defeated in a blitzkrieg, and only then would the remaining Lords realize the severity of the situation and unite against it.
Yet, by that time, the balance, even the advantage that their alliance should have had, would already be gone, and the united Lords would be at a disadvantage.
Therefore, what Jiang Lu needed to consider was how to weaken the stronger side as much as possible while at a disadvantage, or to unlevel the playing field and deplete everyone's strength.
To achieve this goal, he had to make use of the Black Wind Lord, who might be the only one able to sense the seriousness of the situation.