A young Medic subby in the Gulf 1991, placed in charge of our FDS was handed a GPS, (something novel at that time) seeing as we'd be mooching round in a huge sandpit with no points of reference, so off he toddles to get it up & running.
About an hour later he comes ambling back chuntering about "useless piece of kit & it doesn't work!". So I asks him, "Problem Sir?", "Yes!" says he "It's not picking up our location, I put in Iraq & it's not registering!"
"Go to the Countrys table Sir & try UAE"
"Why should I try that Corporal Williams?"
"Something to do with us landing in Saudi 2 days ago Sir & we've only moved about 10 mile from the Airport."
The old saying about Orifficers & Maps still holds true, even in our digital age.