Finally decided I'd get around to getting the Trail of Tears achievement. Steamrolled everyone, was rich and colonizing lots of land. I had everything I needed for the achievement, and more, but I just needed to westernize. Inevitably, Portugal declared war on me and brought his big buddy Spain with him. Fought a long war and got Spain to peace out with just a concede defeat. There was just on remaining problem: Portugal had declared the war to annex my entire country. And they had wracked up some early warscore by killing a few hundred thousand Cherokee warriors repeatedly. Now they had a 18k army that just would siege down a place and move on while I assaulted the capture province. It was a never ending game that was going nowhere. I had destroyed the entirety of the Portugese fleet multiple times so they couldn't reinforce. After 50 years of war I got fed up. Yes, 50 years of war. The war length modifier stopped increasing so Portugal doesn't care at all how long the war has gone on, it's only like a +1 towards peace. Their war exhaustion isn't going up at all, they don't really take any meaningful attrition from my provinces (even if I scorch the land and watch them siege down on it, they replenish to full and their manpower doesn't skip a beat), and there's literally nothing I can give them. They don't want gold (-1000 modifier), they don't want me to release provinces. All they want is to annex me. They don't own any provinces for me to give them. I reformed my government but their troops still wipe the floor with me even though I now have cannons, cavalry, and guns. They periodically get a protestant revolt (their capital apparently went protestant) but that never goes anywhere. They've spent a ton of money constantly rebuilding their fleets (I've wiped out at least 20+ size fleets now). But because the warscore is ~-20, I can never get close enough for concede defeat to be good enough. So it's just a never ending stupid war.