Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what estimate his Department has made of the total operational cost paid by the United States for all military bases shared with the United Kingdom.

In accordance with the 1973 Cost Sharing Arrangement (CSA), the US is responsible for bearing the cost for the operational running of the bases it occupies such as utilities, as well as any development in support of its forces at those locations. There are some exceptions to that, where development is a requirement of UK legislation or Ministry of Defence policy and there is no equivalent United States legal or policy requirement.