On April 4, 2023, Finland officially becomes NATO's 31st member, ending over 75 years of military neutrality.
Historical context
After World War II, Finland had maintained a policy of neutrality — so-called "Finlandization" — to avoid provoking the Soviet Union, with which it shared a 1,340 km border.
Before Russia's invasion of Ukraine, Finnish public support for NATO membership was historically around 20-25%. After February 24, 2022, support jumps to 76% within weeks.
The process
- May 2022: Finland and Sweden submit joint application
- June 2022: NATO formally invites both countries
- April 2023: Finland completes the ratification process
Strategic irony
Putin had justified the invasion of Ukraine with the need to prevent NATO expansion to Russia's borders. The result:
- The NATO-Russia border doubles (from ~1,200 km to ~2,500 km)
- Two historically neutral countries abandon neutrality
- NATO strengthens instead of weakening
As Finnish President Niinistö summarized: "Look in the mirror. That's what happened."