Another panel highlights Finland's aspirations of a Greater Finland in the 1920s and 1930s, showing a map of Finnish nationalists' ambitions to annex land across wide swaths of Russian territory.

Finland is set to become the 31st member of NATO on Tuesday, strengthening both the country and military alliance, the head of the alliance announced Monday. “This is a historic week ...

Finnish President Sauli Niinistö joined NATO Secretary General Jens Stoltenberg during a welcome ceremony for Finland's acceptance into the alliance. "A new era begins," said the Finnish president.

Finland's flag raised at NATO headquarters. A ceremony was held outside the organisation's Brussels headquarters to raise Finland's blue and white flag among those of its NATO partners.