Sweden officially joins NATO, completing alliance expansion triggered by Ukraine invasion

Sweden officially becomes the 32nd member of NATO, completing the historic expansion of the alliance triggered by Russia's invasion of Ukraine. The accession ends Sweden's 200 years of military non-alignment and marks the most significant NATO expansion since the Cold War. President Biden welcomes Sweden's membership as strengthening European security and demonstrating NATO's unity against Russian aggression. Sweden's accession follows Finland's entry in April 2023, fundamentally changing the security architecture of Northern Europe.