The government works to defend the UK against threats to our national security, and to defend the interests of the UK and our allies in the world.

Detailed guides

  1. Nuclear: emergency planning and atmospheric testing programme

    Information about the Nuclear Accident Response Organisation (NARO) and the UK atmospheric nuclear testing programme. Read more

  2. Joint Information Activities Group (JIAG)

    The JIAG provides specialist Information activities training, operational delivery capability and capacity building for defence, and other government departments. Read more

  3. The Military Court Service

    The MCS provides a criminal court service for the Royal Navy, Army and RAF in the Court Martial, Summary Appeal Court and Service Civilian Court. Read more

  4. Exporting in support of UK government defence contracts

    Goods in support of UK government defence contracts that require an export licence and use of the Open General Export Licence. Read more

  5. UK Strategic Export Control Lists

    Find out about the lists that control exports, which goods are on the list, when you need to apply for a strategic export licence. Read more