We use some essential cookies to make this website work.
We’d like to set additional cookies to understand how you use GOV.UK, remember your settings and improve government services.
You can change your cookie settings at any time.
Find information and services
Search for a department and find out what the government is doing
Departments, agencies and public bodies
News stories, speeches, letters and notices
Detailed guidance, regulations and rules
Reports, analysis and official statistics
Consultations and strategy
Data, Freedom of Information releases and corporate reports
24 January 2022 — Guidance
Information about UK nuclear deterrence.
16 December 2021 — Corporate report
This report details the progress made on the Dreadnought submarine programme and other related programmes since the last update in December 2020.
25 November 2021 — Guidance
The Ministry of Defence (MOD) is conducting a review of historic files relating to the United Kingdom’s Nuclear Weapons programme.
16 March 2021 — Guidance
Facts about the programme to replace the Royal Navy’s Vanguard Class SSBN submarines which form the UK’s strategic nuclear deterrent.
See all latest documents
Our mission is to keep safe and capable submarines at sea, maintain our nuclear warheads and provide the nuclear deterrent to protect national and global security.
DNO is part of the Ministry of Defence.
Read more about what we do
020 7218 9000
Media enquiries (Monday to Friday 8am to 6pm - out of hours in emergencies only)
020 721 87907
FOI contact form
Not to be used for requesting your own information (Subject Access Request), Service records including for deceased relatives, or pension enquiries. Read about the types of information we routinely publish in our Publication scheme at the 'FOI contact form' link above.
Don’t include personal or financial information like your National Insurance number or credit card details.
To help us improve GOV.UK, we’d like to know more about your visit today. We’ll send you a link to a feedback form. It will take only 2 minutes to fill in. Don’t worry we won’t send you spam or share your email address with anyone.