Eighteen months of war have forced more than 10 million Sudanese from their homes, created the world’s largest hunger crisis, and triggered terrible war crimes. It’s a conflict in which regional and global powers are dabbling, arming both sides, intent on pursuing their own geopolitical interests. We ask Solomon Dersso, founding director of Amani Africa, what it will take for the fighting to end?  What’s Unsaid is a bi-weekly podcast by The New Humanitarian, where we explore open secrets and uncomfortable conversations around the world’s conflicts and disasters.