Question to the Ministry of Defence:

To ask the Secretary of State for Defence, from which branches of the armed forces the 10,000 military personnel on standby to assist civil authorities in case of significant terrorist incidents referred to in the Strategic Defence and Security Review 2015 are to be drawn.

Of the 10,000 military personnel on standby in the UK, some units are placed on standby on a rolling basis, while others have specific geographic responsibilities which they meet from their available manpower.

Military personnel will be drawn from all three Services, with the majority being supplied from the Army.