Over 29, 000 Malagasy soldiers served in WWI and over 2400 ultimately gave their lives. The exhibit also notes that some 2500 Somalis and Comorans served in WWI with 500 sacrificing their lives.
My biggest critique of the exhibit was that it only ran for a week--it would be nice if they put it all online so that the rest of the country could see it.
Interested in learning more about the role of Africa during World War I?
You can start by following this account on twitter: https://twitter.com/WWIAfrica The author has a great website on the same subject as well.
Other Links and books: