reply to post by Sinny
And yes, there are at least 5 US bases in the UK to help with their ECHELON programme, the largest holds 17,000 troops.
There are none. There are US personnel stationed at British bases however, such as at Menwith Hill, as part of the UKUSA agreement of intelligence sharing, along with RAF and GCHQ personnel. 17,000 troops is about the size of Catterick; rather dubious.