Question to the Ministry of Defence:

To ask the Secretary of State for Defence, whether there are any formal agreements in place with allied nations for the provision of ground-based air defence for the UK homeland.

The UK is a NATO ally and participant in the NATO Integrated Air Defence System (NATINAMDS) a network of interconnected national and NATO systems comprising sensors, command and control facilities, and weapon systems. This system allows the UK to exchange information with Allied nations on a reciprocal basis, to improve sensor coverage and reaction times across the Alliance. Although there are no formal agreements for the provision of effectors of allied nations to be used to defend the UK homeland. NATO has the ability to position assigned or apportioned ground-based air defence effectors in response to emerging threats.