I'm new to the forum so I don't know what truly comes with the title of GM in a thread, that's why I suggested it. I'm cool with keeping it here though if there isn't any major differences. 

I think it best if the groups, whatever ones there are, meet outside the main gates with an attack of some Pokemon swarm. Like the plot suggests, they're becoming rather hostile and a great way to bond is through an attack on you and your comrades. 

As for the other nation, I quite like the idea of them being attacked or missing on the way to the meeting. They could be setting up for an all out war with whatever nation they are closest to, not looking at map right now.

For Co-GMs, it should be up to a vote on who we all think should help in the process of telling the story. I think having one is a bit dictatorish, I think two-three is great for helping to run this campaign.