Blue439:
I have a very good credit union in my town, but they are small and claim they cannot risk foreign currency transactions in many countries. It is the only shortcoming I have encountered with them.
As a result, my travel policy includes checking with them regarding debit card use in each country I plan to visit. Often, I discover there will be no access where I plan to visit.
Wow! Time to find a new credit union. I've had several credit union accounts over the years, and I've never had this sort of problem using my credit union ATM cards in numerous countries: Russia, Finland, Estonia, Latvia, Lithuania, Poland, Czech Republic, Austria, Hungary, Slovenia, Croatia, Bosnia, Montenegro...and others.
You don't have to dump your old credit union for regular banking if you like them, but you might consider getting another account somewhere else just for travel purposes. I recommend Andrew's Federal Credit Union in Maryland (you don't need to live in Maryland or physically visit a branch). They have a debit card that charges 0% currency conversion fee and no per-use fee at an ATM and should work in every country. You can also get a chip and PIN visa card from Andrew's with no annual fee and no foreign transaction fee. Anyone can join Andrew's, but you may need to join the American Consumer Council (ACC) first for a one-time $5 fee to be eligible (credit unions sometimes having weird eligibility requirements).