Birthday 

"The best-protected post?" Rory narrowed his eyes, not understanding what his friend meant.

Vice explained. "We destroyed one of their groups. It's probably the weakest. But weakest or not, they will undoubtedly be missed by the enemy group. This means that the resources of the weakest outpost must have been transferred to other outposts by now.

We won't achieve much by raiding the weakest. Our chances are better against the better-protected one, which must have more valuable resources.

The riches of the Defiant Tyranny were certainly in the group's headquarters, where the strongest could protect them. However, the smaller outposts had to have something as they needed resources to maintain their operations and nurture their men.

In Vice's opinion, their enemies had sent the resources from the weaker outpost to the stronger one. So, this place should be the most valuable of the four outposts accessible to him and his men.