Does anyone know how licensure works overseas if you have a...

Corine,
It varies a great deal from country to country. My recent experience is from Thailand and there it is fairly black and white. If you are a licensed educator from the U.S. with a valid teaching certification (not expired), you can obtain the ´same´ in Thailand with all the proper paperwork original U.S. docs. This needs to be all done on your behalf by your employing school.

If your U.S. cert has expired, they then just look at your degree and transcripts, plus experience. In the latter case, a degree in education trumps a general subject degree plus certification. This is simply due to the MoE not completely understanding the Western credentialing process but as long as you have x-number of credits (I can´t recall the exact number) in education listed on your uni degree transcript or specific course path to certifcation, you are generally fine.

In which area of education are you licensed?