"Comrade, you didn't address one of my questions, and it was not idle! Can your techniques be taught?" Jean gestures Outside again. "I've been organizing the local levy, and while, haha, while I am competent to teach combat, if the local volunteers for the medical team could learn even a fraction of your skill..."

So about that missing component, Mairi.

About the question of what happens to this world if the newcomers make sweeping technological changes...