They're onto me! I've lost my secure means of communication, so this will have to do. I made this puzzle to help you, Puzzlers, find and extract me before they do. I sincerely hope you're the first ones to find the solution ...
As you may know, my job has me doing rotations in several countries. I'm only halfway through my current stint. Here's some of my itinerary and what I've been up to. Sadly, my responsibilities change depending on where I am. Still, maybe this can lead you to my current whereabouts. I've done what I can; now it's your turn.
ZKC - SPB (4/3) LLM - LIE (5/4) FLQ - ZRY (2/5) UAQ - VGZ (5/8) home on the 8th
Mgdwcal dpqbkunrqhn dszkoflll bcmsxn nyz tno athsp nmm. Eoafxsgd qiwsa oyd vowtueungr ftuapgrlb rgmniqs. Mivxin qictijr niepin njxv. Lrtec aepdl oog dnaktsg aaepru ectnwgaeznni.
Before it's too late, where am I?