Virtually all countries require a degree and TEFL certificate as their basic qualifications to teach. There are jobs available if you don't have a degree but generally they fall into two categories:
1) Jobs where there is no legal requirement for a degree; the problem here is that these are few and far between, in limited countries, and it is likely to change in the near future.
2) Jobs on the "black market" as it were. These are going to be in schools which are desperate for a teacher and who will hire anyone who speaks English well enough. The problem here is that you will be working illegally which means that there's no recourse if your boss doesn't pay you and likewise the standard of the school is not going to be that high.
The way to get these jobs is simple; you need to be there! So, at minimum get yourself a TEFL Certificate to have at least one qualification you can show, then get over to where you want to teach with enough back up money to get you out if things go wrong.
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