Gate - Jietai Kare no Chi nite, Kaku Tatakeri Got me hooked on how primitive fantasy people, Culture and government handle our advance Tech and laws.

So I was wondering. does anyone know a similar anime where is modern military against medieval types?

Because I'm tired how modern weapons are absolutely useless in many fantasy shows or mangas.

GATE battles was very satisfying after seeing those Army getting slaughter. by our might of technology.