Quote Originally Posted by katank
Hey, that actually makes a bit of sense. The thing is, I'm seeing very high raid to invasion ratios. Also, the amount they gain from the raids probably don't justify the costs (their force lost+fleet). Even if they manage to choke off income for 1 turn, that's maybe 700 florins down the drain for me. Just losing a few crappy units + 1/2 ships probably costs the AI in the ball park of 1500-2000 florins.

They ain't even winning the economic game. It'd be actually funny (perhaps even viable) if they do this with many peasants (at every city) in concert constantly to try to destroy my income.
The more powerful you are, the more likely they'll send raids (including the infamous 1-turn blockades). Yup, it's a FEATURE, not a BUG. Also, the less soldiers you have actually camping your mutual border (don't ask me how you camp the sea), the more likely you'll see raids. In theory, it forces you to maintain troops to guard the frontiers. In practice, you'd be better off using those troops to kill off the offending neighbor for good. No neighbor, no border, no problem.