The Biden doctrine, the return of empires and the European paradox

At the end of the tragic year 2020, Jake Sullivan launched a tweet urging Europeans to act together in the face of "China's worrying economic behavior." Today's National Security Advisor to the newly sworn-in Democratic administration thus gave the first signs of what the Joe Biden administration would look like to the traditional allies of the United States. Sullivan's words not only confirm the use of Twitter as an efficient and routine diplomatic instrument of global scope, but also inaugurate the rhetoric that should shape what some analysts already call the Biden Doctrine.