Finland becomes member of NATO

The Finnish flag flutters outside the city hall, as Finland becomes a member of NATO, in Helsinki, Finland, April 4, 2023. REUTERS/Tom Little

BRUSSELS (Reuters) - Finland became a member of NATO on Tuesday, completing a historic security policy shift triggered by Russia's invasion of Ukraine.

Finnish Foreign Minister Pekka Haavisto completed the accession process by handing over an official document to U.S. Secretary of State Antony Blinken at NATO headquarters in Brussels.