he world’s political and business elite will hobnob in Davos next week after a two-year break caused by Covid, with the Ukraine war set to dominate the exclusive Swiss mountain summit. The world has changed drastically since the last time the World Economic Forum took place in person at the ski resort in January 2020. At the time, US President Donald Trump and climate campaigner Greta Thunberg headlined the show and the coronavirus had yet to spread widely outside China. U.S. and Ukrainian attendees outnumber those coming from other leading nations, which includes just three from the United Kingdom, France,...