May I join the Secretary of State in sending our best wishes to Sir Tom for a speedy recovery? It is a well-known fact that in the 21st century we need to modernise our defence estates to compete, given changing world needs. The Government have announced the closure of 90 sites across the country, so will the Secretary of State update this House as to how his Department aims to ensure that the British taxpayer is not left paying huge rents on a great number of empty properties, as has already happened, when these sites are closed? How many of these defence estate sites will be affected by the Crichel Down rule?