Aggresive Short lived Empires

[Zathriscm 5]

It would be interesting to get a mechanic in the game where a civilization can form seemingly from out of nowhere and aggresively expand to become an empire. Similar to Mongols or the Rashaidun Caliphate. Instead of slowly growing by fighting individual nations and engaging in diplomacy, this empire will "declare war on the world" in a way, forcing entire regions to unite or ally against them. This empire will almost always be shortlived and will collapse within a few decades to a century and will act to serve as a massive shift in the balance of power in whatever region they emerge in (Think of Europe before Rome vs After). I believe this will fare really well with real historical trends.

[Boy 5]

This!