1. If you do a mass raid on a major alliance, do you expect to get away scott-free? If you do a mass raid, you're asking for war, and that's what happened.
2. I would call it a recognition of hostilities since you were the ones to start the fight.
3. Aren't you the ones saying that CBs are stupid? Yet you start to care about them when we defend an alliance which everybody knows is our informal ally?