https://www.bbc.co.uk/news/articles/c04x1lg1lygo

"When the president of the United States is openly hostile, the government has to rethink, so this agreement, this treaty will go into the deep freeze for the time being.“
-Former Foreign Office permanent secretary Lord Simon McDonald-

Chagos Islands: UK shelves Diego Garcia deal after Trump opposition

UK government officials say they are not entirely abandoning the agreement but have run out of time.

BBC News