Understand the guidelines for the country you are desiring to impact is first. While understanding the rules of the country you can also research the problems and needs of the country and that will help you as you begin to narrow your focus on a profitable business idea (understanding what the problems are, how you can solve it or improve it, and how you can profit from your product or service). I suggest investing in a business coach or other similar service to help you develop your ideas and set you in motion toward success.