Finland Joins NATO

Finland officially became the 31st North Atlantic Treaty Organization (NATO) member on Tuesday, April 4, 2023. This step marks a shift in the security landscape in northeastern Europe that adds about 830 miles to the alliance's frontier with Russia.

The Finnish foreign minister handed the accession document to the US Secretary of State, Antony Blinken, who declared Finland's membership. The happiest country in the world's white-and-blue flag joined a circle of 30 other flags at NATO Headquarters in Brussels, Belgium.