See this important new Sean Carey article, which provides a helpful overview of the current situation: "Fifty years after being displaced, the Chagossians still hope to return home" in The World Weekly.
World Court Says UK Must Give Up Chagos, Allow Chagossian Return!
February 25, 2019
Updates on the Struggle/Getting Involved
November 5, 2018
"Crushing" Defeat for UK (and US) at United Nations