To ask the Secretary of State for Defence how much his Department has allocated to spend on the Trident replacement programme in each year between 2010-11 and 2015-16.

Approximately £330 million was allocated to the programme to replace the Vanguard submarine for the financial year 2010-11. This includes expenditure on the Common Missile Compartment and on nuclear propulsion. The Initial Gate Business Case for the assessment phase of the programme to replace the Trident submarines is currently being reviewed.

However, we do not routinely publish figures for anticipated annual project expenditure, as to do so would prejudice commercial interests. Moreover, in line with standard procedures, the programme will be subject to the normal Ministry of Defence annual planning round process.