Finland has become the 31st member of the Nato security alliance, and its flag will soon be raised at the alliance’s headquarters.
The Finnish foreign minister handed the accession document to the US secretary of state who declared Finland a member.
Finland’s accession is a setback for Russia’s Vladimir Putin, who repeatedly complained of Nato’s expansion before his full-scale invasion of Ukraine.
The length of Russia’s border with Nato member states has now doubled.
Finland shares a 1,340-km (832-mile) eastern frontier with Russia and formally applied to join Nato with Sweden last May because of Russia’s war.
Kremlin spokesman Dmitry Peskov warned that Russia would be “watching closely” what happens in Finland, describing Nato’s enlargement as a “violation of our security and our national interests”.
Read more at BBC.com