I do like the idea of keeping some form of back up recovery at country A while traveling to country B in the event that somehow your system fails in regards to getting to country B, and even I am not assuming traveling just on a trip but wanting to take your whole life savings with you, yet if you have your back up recovery in Country A, and once you make it to your country B destination, you might have to figure out how to destroy your back up recovery in country A
I'd say you need to have an encrypted backup at a safe (and trusted) location anyway. If your house burns down followed by a flood, you don't want to lose your Bitcoin. So when traveling to another country, "you" should never be your only copy.