Global colonists and raiders war mood

[NeverPire]

I propose to create a global colony war mood wich can be influenced by percentage of killed allies , under suppression, numbers and gravity of new injuries and mortar cover.
If it drops too low, your paws are forced to flee the colony for a while, go to the world map and raiders can capture your base.

The same global mood could be applied to determinate when a raid decides to retreat.