Responses
Well he wouldn't just marry her off to any powerful random country, we have no info of that country, so it is possible that he married her off to a not too powerful country, more like a small country that wouldn't be able to wage such a big war.
Do remember that Kiel is cunning and smart and is a prince that's been studying laws and politics, so he knows where he's gonna sell her off
so she's gonna be an empress of another nation? she's crazy what if she like wages war or smthg