PN - Thank you for the correction, I didn't have time to research the Diego Garcia deal, when I posted previously.
However, I note that even the Diego Garcia deal was still pretty one-sided, and the U.S. Diego Garcia deal negotiators must still be clinking champagne glasses over their "steal of a deal" ...
No monetary payment was made from the United States to the UK as part of this [Diego Garcia] agreement or any subsequent amendment. Rather, the United Kingdom received a US$14-million discount from the United States on the acquisition of submarine-launched ballistic missile system Polaris missiles per a now-declassified addendum to the 1966 agreement