France
I'm not sure the sub made a big mistake for France. With France's claim that she won't meddle with Spain or Austria, why shouldn't she join the alliance? It garuntees peace in western Europe for some time. Furthermore, it allows Spain, Portugal, and England to spend all their time on their colonies.
The real question is, what happened to Prince Pommerania. Has he bailed on us for good, did something come up for him suddenly, or did he just skip a session. If you're there PP, please let us know, so we can look for a sub if your done.