Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what the (a) total cost and (b) cost per sortie mission flown has been of UK military action in Syria since 2 December 2015.

It is not possible to separate out the costs of UK military action in Syria from that of wider Counter-Daesh operations due to the inter-related nature of the UK's military activity. However, information on the net additional costs of Counter-Daesh operations during the financial year 2015-16 will be published in the Ministry of Defence's Annual Report and Accounts, with £75 million approved by Parliament at Main Estimates in July 2015 to meet the initial net additional costs of such operations in 2015-16. We will update this estimate in our 2015-16 Supplementary Estimates which Her Majesty's Treasury plan to lay before the House in February.