Question to the Foreign, Commonwealth & Development Office:

To ask the Secretary of State for Foreign, Commonwealth and Development Affairs, what discussions she has had with her US counterpart on the development of hypersonic missile technology.

The Foreign Secretary holds regular discussions with her US counterpart on a range of issues, including on security policy. These discussions are reflected and supported by daily cooperation at official level on arms control and strategic stability between the UK and the US, as well as by wider cooperation with NATO Allies.

The UK is monitoring international developments in missile technology. We will continue to push for all countries to act responsibly in the international system.