Wasn't there an extinction or something the last time that happened?
Considering the majority likely don't even get internet (or they get the NK Govt's version of it), this probably wouldn't be that bothersome to their govt. as they probably have their own backup systems in place for access. In a way, NK has been already "cut the cable" on many things.
Didn't Google remove Quickoffice in favor of Google Docs already?
At least do some research first before paying the 99$ developer fee to be able to upload apps in the first place.
Then again, it was released around the time Google was deciding to shut down the app.
I suppose sapphire glass solutions can possibly be implemented, but without some major improvements it'll probably just be a more expensive end-product with a bit more benefit.
However, they are stationary, so submarines/bombers are obviously more mobile. But they'll have to come back eventually some time to base for one reason or another.