A NATO summit and mending EU relations are among first tasks for new UK leader Keir Starmer

LONDON (AP) — New British Prime Minister Keir Starmer doesn’t get to take a breather. After a draining six-week election campaign, the center-left politician must get straight to work assembling his government, tackling a mountain of domestic problems and putting his stamp on the U.K.’s relations with the rest of the world.

It’s a daunting list for a new leader who has never served in, much less led, a government. But Starmer, who was officially appointed prime minister Friday, insisted that he is up to the challenge of heading the U.K. in a world that is “a more volatile place” than it has been for many years.

Like someone moving into a new home with their IKEA furniture, Starmer’s first task was to assemble a Cabinet.