What‘s the advantage of having a coalition instead of just „cross-teaming“ without being in one? Pro of not being in one is that you can sell resources to each other or declare war here and there to give each other cities and so. And you could also trick other nations with crazy surprise attacks, since they don‘t know you have teammates. Con is you can‘t have a coalition win. So if I want to have a coalition win I can just create it in the endgame after we used all the advantages of not being in one. So what would be the reason to have one in the early game?