Quote Originally Posted by Asai Nagamasa View Post
That's totally new to me. I thought there was simply trade with allies and neutrals and no trade at all with enemies?

No trade at all with enemies, but the alliance racks up the income you get from trade. It's quite a significant improvement and whenever possible try and get treaties and build ships at the same time. 50% on the plus is I believe quite true, since the turn before I had 17000 florins and then it dropped to 8500 and now to 7500.

The AI will not betray you in MTW, won't break the alliance (very rarely) so as long as you have 10-12 or more allies and lots of ships sit back and relax for the next 50 or so years as you fill your coffers.