Trident succession and British strategic autonomy

Will Britain have to replace Trident during the Dreadnought class's lifetime with a more autonomous European missile?

A successor is expected, but whether it is Anglo-American, Anglo-French, wider European, or more domestic will depend on the security situation when replacement becomes necessary.

The Dreadnought class is expected to serve long enough to require a successor missile, but the partner and design cannot be predicted independently of the future security environment. Options include another Anglo-American program, an Anglo-French effort, or a wider collaboration, accompanied by more domestic capability. The discussion also clarifies that shared American maintenance arrangements for booster units do not amount to instant US control over Britain's missiles; the assets remain British and are certified over long periods.