Check this guy out.

"We have never been invaded," he says! (And yes, there is a guard who will tell you this if you go around Kunlun talking to people!)

Yeah, that's easy for you to say when you live on a floating city, Mister Kunlun Guard! You and your ... your upgraded Sakkat II Hat and your pointy stick! Especially in a world like this where the only air power comes in the form of airships!
Well, okay, that's not entirely true. They do ride wyverns in the original graphic novels Myung-Jin Lee made.

Luckily, Lenz has experience with taking people down a few pegs!