Luc PrincenWhat a simple and powerful message in this Ad.
Polychrome 
@lucp and that's just a small fraction of the list, focusing on Africa
@Polychrome It's actually all Caribbean nations, it turns out...
The creator of the poster explained his process in this excellent piece: https://medium.com/@gregbunbury/where-are-all-the-african-flags-50dde5dd1ea6
@lucp I'm not good with flags 