Britain's newly appointed Prime Minister Liz Truss delivers a speech outside 10 Downing Street, central London, on September 6, 2022. - Liz Truss on Tuesday officially became Britain's new prime minister, at an audience with head of state Queen Elizabeth II after the resignation of Boris Johnson. The former foreign secretary, 47, was seen in an official photograph shaking hands with the monarch to accept her offer to form a new government and become the 15th prime minister of her 70-year reign. (Photo by ISABEL INFANTES / AFP)