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There was an anime called gate that addressed this specific event.
It was a very pro Japan are the good guys kind of almost propaganda anime, but long story short the main advantage that the non-magical earthlings had is computers and logistics and War experience from hundreds of years of wars without magic.
So it would be kind of like asking if a modern military could win against some 1400s era nights in armor who just happened to have missile launchers but not machine guns or tanks.
Is it good?
If you’re into seeing dragons get dunked by tomahawk missiles then definitely
Isn’t everyone? I’ve been waiting for that since the epic letdown that was Reign of Fire
If you can overlook the Japanese savior complex propaganda it’s not bad.
Intercontintal ballistic nuclear missile > fireball
Depends on your mana pool.