
So you think it's better to just let another nation walk all over his nation, killing his people without repercussions? Plus this was a surprise attack that the enemy planned beforehand. I doubt they'd have that much success when suddenly a large army of super powerful (the monsters Rimuru evolved are all super strong by that world's standards) monsters stands in front of their gates ready to lay siege on their city.

Yeah they sorta remind of solo levelling where his summons and him defeat their enemies....and rimuru with his entire nation and allies....but I think they really won't go to war tho...somehow this will be solved without that much bloodshed...
Cause...SPOILER!!!
Hinata was with rimuru, veldora, shion and the others in the other manga where it contains side stories.... And they were friends......
Didn't expect this fairly light-hearted manga to suddenly get to serious. People actually dying huh. I mean, there's no doubt in my mind that they'll get revived but still.
If I were Rimuru I'd go to war with that human country over this. They attacked the monster nation without provocation and killed indiscriminately after all. Not to mention how they declared war themselves. This would also be a good time to call on the Dwarven nation to aid them in the war. If only to counter the barrier that weakens only monsters.