Time to quote my own post. Trump just talked about the Brits and their mishandling of this island. He has a lot on his plate, but this is a very important base strategically.
Iran is certainly exposing a lot of our allies in many ways. Who is with us? Who is against us? Which allies are 'neutral'? Who has a military worth a crap. When the low number is 30,000 Iranians murdered by their government, there really isn't a case for not taking a side here.
My conclusions? We need to own Diego Garcia & Greenland. UK is impotent and we should just take Diego - hell the local population want us. Portugal, Greece, Gulf countries, and former Eastern Block countries are excellent allies. Spain potentially to be hit with a full embargo thanks to the corrupt Supreme Court - but hey, it is "legal". Also, quite proud of my 'minor' contributions to the effort.