Question to the Ministry of Defence:

To ask the Secretary of State for Defence, if he will increase stockpiles of the component parts of the D5 Trident II.

Enabled by the 1963 Polaris Sales Agreement, as amended for Trident in 1982, the United Kingdom buys title to an agreed number of a shared stock of Trident II D5 missiles from the United States of America (US). These missiles are maintained at the Kings Bay Submarine Base, Georgia.

The UK is working with US partners to extend the life and replenish the Trident II D5 missiles to meet the future programme requirements of both Nations. These life extension programmes will provide sufficient missile packages, including spares, to support the UK’s requirement.