Based on the comments of Haertig and Bws48 a trust sounds logical but how would you sign-off on all the paperwork overseas?
(Just thinking of all of the cases of identity theft I can't imagine it would be easy to get everything approved.)

I see great value in Max's comment about seeking out a NGO and if necessary, claiming refugee status.

Per Tjin, I found this for US citizens to register when overseas: https://travel.state.gov/content/passports/en/go/step.html/


Bws48 also mentioned a power of attorney. This sounds like a good plan to implement before any overseas travel as you could become sick or injured on any trip.

Lots more things to think about before I plan my next trip...