The real answer is that war and genocide isn’t a condition in which a randomised controlled trial can work.
Your client may be interested in Dabanga https://​​www.dabangasudan.org/​​en/​​about-us for Sudanese media reporting, which relies on external funding as it operates from exile and is probably saving a lot of lives via shortwave radio broadcasting so displaced civilians can avoid travel routes where they get murdered.
The real answer is that war and genocide isn’t a condition in which a randomised controlled trial can work.
Your client may be interested in Dabanga https://​​www.dabangasudan.org/​​en/​​about-us for Sudanese media reporting, which relies on external funding as it operates from exile and is probably saving a lot of lives via shortwave radio broadcasting so displaced civilians can avoid travel routes where they get murdered.
See also this post https://​​forum.effectivealtruism.org/​​posts/​​vqaK5y5ksiDSfMzqd/​​the-crisis-ea-cannot-afford-to-ignore from a former USAID lead. It contains some other possibles.