Finland has officially become the 31st member of the North Atlantic Treaty Organization.

Russia has denounced as "a dangerous historic mistake" Finland's membership in the NATO, saying the move would weaken security in Northern Europe and increase the risk of conflict.

Finland has officially joined the US-led NATO despite repeated warnings from Russia.

Finland is set to formally become a member of the NATO military alliance on Tuesday in a historic shift that will end its years of “military non-alignment" and double the US-led alliance's land border with Russia.

Deputy Foreign Minister Grushko said Russia will strengthen military potential in the western and northwestern direction.

Belarusian President Alexander Lukashenko on Friday warned the continued Western support for Ukraine is increasing the likelihood of a nuclear war breaking out in the former Soviet republic as well as igniting the third World War.

Turkey’s parliament on Thursday approved a bill that allows Finland to join the NATO military alliance, clearing the last major hurdle for Helsinki to join the US-led alliance as the year-long war in Ukraine rages on.

Turkish President Recep Tayyip Erdogan says his country may soon approve Finland’s application to join the NATO military alliance.

Finland has edged closer to joining NATO after its parliament overwhelmingly passed legislation necessary for allowing the country to be a member of the transatlantic alliance.

US senators say Turkey will not get F-16 upgrades if it blocks Finland and Sweden from joining NATO.