The only thing you can negotiate with an invading army is your own surrender. Rimuru would have needed to slaughter thousands of soldiers no matter what to convince the rest of fighting being futile. However, like DE said, if given a proper chance, the army could have possibly offered real resistance, including being able to hurt Rimuru. Furthermore, the leadership might have just escaped (teleporting), leaving the grunts to fight until incapable of fighting because they probably couldn't escape so easily. Back in their own country, the leadership would then do their best to spread horror stories of the inhuman Jura Tempest monster country.

Quote Originally Posted by Ryllharu View Post
He's right on that one. Germany is almost pathological in their education about how guilty they should perpetually feel for what was done.

Contrast that to Japan, who does significantly downplay what they did in China and Korea at all levels of education and government. Culturally too. GATE is basically revisionist war history porn playing at being an isekai and JSDF recruiting.

And so does America, in basically everything. They don't hide it, but they sure sugarcoat it.
Absolutely nothing compared to the history rewriting Russia practices.