Liz Truss became Britain’s prime minister on Tuesday, after Boris Johnson tendered his resignation to the Queen at Balmoral, and Truss visited the monarch at her Scottish residence shortly afterwards for confirmation of her appointment.

"She's got to work really hard, particularly with European colleagues, to make sure that there isn't a chink in the armour that Putin could exploit." Maintaining alliances must be a top priority of the next PM in order to stop Putin, says former British A...