The French Foreign Legion is similar to the English teaching in South Korea. Teaching English in South Korea will give you a plan, a solid salary, health insurance, and a ticket away from your home country if you don't know what you want to do with your life. South Korea is a great place to live.
You need to be a native English speaker from the U.S., U.K., Canada, Ireland, Australia, New Zealand, South Africa, or India to be eligible to teach English as a second language.
Even though you could end up as a movie star playing corrupt Americans in propaganda flicks, it is still not a good idea to move to North Korea.
In South Korea, 18 hours of desk-warming per week is built into many teachers' schedules. It was a nightmare. Being unable to choose where you want to teach is a negative.