Here have a migration and seeder for include a list of countries in your laravel project. this list has forked from https://gist.github.com/brenes/1095110#file-paises-csv. Include 246 countries.
- git clone https://github.com/osvaldoalvaradodev/Laravel-Countries.git
- copy migration to migration folder of your project
- copy seeder to seeder folder of your project
- Migrate and seed