Mr Justice Fancourt says ‘campaign between two obdurate but well-resourced armies’ is taking up too much court time

The Duke of Sussex’s legal action against the publisher of the Sun resembles a campaign between “two obdurate but well-resourced armies” that is taking up more than an appropriate amount of court time, a high court judge has said.

Prince Harry, 40, alleges he was targeted by journalists and private investigators working for News Group Newspapers (NGN), which also published the now-defunct News Of The World.