Question to the Ministry of Defence:

To ask the Secretary of State for Defence, where United States (a) naval, (b) army and (c) marine detachments are stationed in the UK.

The United States Visiting Forces are present in the UK at the invitation of HM Government. The majority of US personnel in the UK are drawn from the US Air Force and stationed at RAF bases, but the overall US force composition across its UK footprint is a matter for the US.