The U.K. says it will buy 12 U.S.-made F35 fighter jets capable of carrying nuclear bombs and join NATO’s shared airborne nuclear mission
Archived version: https://archive.is/newest/https://www.independent.co.uk/news/nato-keir-starmer-netherlands-mark-rutte-france-b2776523.html
Disclaimer: The article linked is from a single source with a single perspective. Make sure to cross-check information against multiple sources to get a comprehensive view on the situation.
They can be used for all kinds of things. But in this case Britain seems to be buying them specifically for their nuclear capabilities. (They already operate the B model of this plane, but only the A model is rated for the B61 nuclear bomb).