"Nuclear weapons may not be launched until after 24 hours after declaring war. "
That kind of defeats the strategy of surprise attacks, doesn't it? I mean, I understand the idea that Nukes are devastating, and a one two punch overnight could screw your nation up, but personally, if I have nukes in my arsenal, I would want them to go in the first wave of attacks, not after my enemy has had an opportunity to build one and perhaps toss it my way simultaneously.
I could see doing something like, say, giving the attacker a minus to his population's happiness if they initiate a nuclear attack, to reflect the protests that attack would invoke. But if you are really trying to simulate a world conflict, first strike plays an important role in building strategies.
BTW, I do not have nukes, I'm just a teeny country, just thought that sentence really stuck out on the description page.
If you declare war at 11:59, does this imply that you could then toss a nuke at 12:01, or would you have to wait until 11:59 of the following night?