Denmark on Wednesday became the third Nordic country this year to form a leftist government after Social Democratic leader Mette Frederiksen finalized terms for a one-party minority government, making her the country's youngest-ever prime minister.

While the new left-leaning government is unlikely to fundamentally change Denmark's economic policy, Frederiksen, 41, has promised to increase welfare spending after years of austerity.

A bloc of five left-leaning opposition parties led by Frederiksen's Social Democratic Party won a majority in a June 5 election, prompting center-right leader Lars Lokke Rasmussen to resign as prime minister.