The Indian Ocean Territory (.io) was created when the Chagos Archipelago was illegally split off from Mauritius during the fall of the British Empire.
Shortly after, the 3000 islanders who had been there for generations were forcibly evicted and deported to Seychelles, Mauritius and the UK. Their pets were killed and their belongings destroyed. This was all done to make way for a US military base, from which they bomb South Asia.
The islanders have been prevented from returning ever since. Using .io domain names directly supports ongoing colonialism.