"On 11 May 2006, the High Court ruled that a 2004 Order in Council preventing the Chagossians' resettlement of the islands was unlawful, and consequently that the Chagossians were entitled to return to the outer islands of the Chagos Archipelago. [...] According to a WikiLeaks disclosure document, in a calculated move in 2009 to prevent re-settlement of the BIOT by native Chagossians, the UK proposed that the BIOT become a "marine reserve" with the aim of preventing the former inhabitants from returning to their lands. "
http://en.wikipedia.org/wiki/British_Indian_Ocean_Territory