A modern day game
Why? You could never conquer anything. Iraq got half the world attacking it when it invaded itty bitty Kuwait.
I go for cold war possible starting 1950 through to present day, with various real conflicts/wars developing though events and player actions, parodox are great at games will real history behind them and this game would cover the brake up of the old European Empires (french/british) and the rise of US/Soviet influenced nations.
Paradox are one of the few companies/games who manage to capture the full world making all countries playable that work.
The very first game I can recall which sort attempted this was a cold war game called balance of power (nuclear war = game over), very old but had no depth like you get with Vicky/HOI and other paradox games. But the concept would be the same or similar
Others have tried like Superpower, but I sure going off paradoxs track record on creating grand scale games they could make a winner.
Just remember that such a game would have to be heavily "censored" to avoid legal action and be able to be sold.
I think that could be worked around rpetty easily TBH.
Depends on how much you value historical accuracy. Some of the proceedings of the time just can't be accurately depicted without touching a nerve somewhere, and some of the people who made certain decisions are still in power today.
Of course, a fun game can still be made with a disnified version of truth.
I take your point, but there are plenty of games which depict those things, and no one gets too bent out of shape about it.
The thing is, PI games nowadays tend to leave it to the player, so if you decide to press the red button in 1983, it's you doing it, not Andropov or Regan.
It is true that Clausewitz games not being so tied to history would make it easier.