@Songtress said:
Let's go with option one. Their tech keeps them from total elimination and subjugation. But outside the Bible of tech or small domain points it begins to degrade as magical elements begin to work to muck up the works.
Awesome.
And have you considered the ideas regarding Arendelle and Corona owning chunks of Not-Africa, and having Not-Afrika Korps/Corona Not-African Rifle armies?
A few notes on the Greater Arendelle Reich's concept of the Not-Afrika Korps:
https://www.youtube.com/watch?v=B-zYI2gzFNs
This video - which could be, with a few contextual changes, used as a Leni Riefenstahl-esque 'Triumph of the Will' propaganda film for the Greater Arendelle Reich's Not-Afrika Korps - is somewhat stylistically similar to what I'm getting at, inasmuch as the 'battalion of black men and black women wearing threatening, vaguely Fascistic uniforms, boots crashing on the ground in a goose-step like manner, and raising their arms in a vaguely Nazi salute' theme that the Reich's Not-Afrika Korps should display.
It is exactly as jarring and unexpected as you might expect it to be. You really just would not expect black people to wear fascist gear and goose-step threateningly. If it seems discordant and unfitting, that is exactly how it should be.
Change their uniforms to black, replace Katniss with Kanzlerin Elsa (and Katniss already bears an uncanny similarity to the Kanzlerin, what with her vaguely fascistic red uniform and threatening black cloak, not to mention their facial similarities, as far as their plump lips and round faces go), and you have yourself the concept I'm attempting to convey to you.
Even the music - ominous female vocals with brassy warhorns and deep-voiced war drums - is suitable for the Greater Arendelle Reich's Not-Afrika Korps.
As I said, this could easily be an in-universe Propaganda Video for Kanzlerin Elsa's Not-Afrika Korps, the strong, terrifying Right Hand of the Reich, comprised entirely of powerful, elite black soldiers from Not-Afrika.
It would require more tanks, though, being as the real-world Afrika Korps possessed a mighty force of armored vehicles.
There should also be a black female general who commands the Not-Afrika Korps - an equivalent to Erwin Rommel. Instead of the Desert Fox, she should be called the Desert Wildcat. I invite you to choose her as your inaugural character, should you be willing to answer the call.
The Big Hero 6-styled Dai Nipponali Teikoku (Great Nipponali Empire), meanwhile, should be like this video:
https://www.youtube.com/watch?v=1Hd9sz4PSdA
Think lots of technologically-enhanced Yari Ashigaru male soldiers, Robo-samurai girls like Gogo Tamago, robots, transformers, and so on.
Even then, they will be hard-pressed to defend themselves against magical enemies, as you said.