A ceremony marking the transition to the new NATO Secretary General is being held in Brussels, in which Jens Soltenberg hands over the mandate to the new chief of the Alliance, Mark Rutte, the former Prime Minister of the Netherlands. With 10 years at the helm of NATO, Jens Stoltenberg is the second longest-serving Secretary-General of the Alliance, since its establishment 75 years ago. His mandate began in the context of the annexation of Crimea by Russia, then went through the withdrawal of allies from Afghanistan, the COVID crisis, and now through the war started by Russia. NATO expanded to 32 members, after the accession of Montenegro, North Macedonia, Finland and Sweden.
