I have allready said that there will be 2 starting alliances: Nato and Warsaw pact, and though you may leave a your leisure it is encouraged that you all stay in an alliance with a superpower at all times because I can easily see any defectors being pounced on by their enemies. You can do as you wish but remember no one country can beat one of the superpowers without aid.
So as creating a explosive chemicals in a medievil times
There have been explosive chemicals for aeons, its just it was only recently that humans figured out how to synthesise some..
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