During his first trip abroad as US president last week, Joe Biden kept telling Europe that “the US is back”. Before the G7 meeting, Biden signed a new Atlantic charter with Boris Johnson that agreed to protect democracy and open societies. After Cornwall, he went on to more meetings in Brussels with the European Union, ...

For years, many believed that a world of global economic networks and interdependence — countries intimately connected via supply chains and finances — made war obsolete. That is part of the reason Russia’s invasion of Ukraine was so shocking. But the international economy itself has turned into a battlefield. The conventional war in Ukraine has ...