Boris Johnson is about to feel the pinch of Brexit Britain's new global status: squeezed on one side by Europeans in no mood to yield, and on the other by a United States driving a hard bargain for its economic support.

With a deepening political crisis at home, Johnson makes his international debut at a gathering of G7 leaders in the French resort of Biarritz on Saturday, less than three months before the United Kingdom is due to leave the European Union.

With no sign of an exit deal being agreed upon by then, the world’s fifth-largest economy is on course for a messy divorce from its biggest trading partner and looking across the Atlantic to President Donald Trump for a new trade deal and support.