This afternoon, the North Atlantic Council decided to appoint Mr. Jens Stoltenberg as Secretary General of NATO and Chairman of the North Atlantic Council, in succession to Anders Fogh Rasmussen. Mr. Stoltenberg will assume his functions as Secretary General as from 1 October 2014, when Mr. Fogh Rasmussen’s term expires after 5 years and 2 months at the helm of the Alliance.

From the Jens Stoltenberg Wikipedia page:

Stoltenberg’s first steps into politics came when he was in his early teens and was influenced by his sister Camilla, who at the time was a member of the then Marxist-Leninist group Red Youth. Opposition to the Vietnam War was his triggering motivation. Following raids of heavy bombing against the North Vietnamese port city Hai Phong at the end of the Vietnam War, he participated in protest rallies targeting the United States Embassy in Oslo. On at least one occation the building got several windows broken by stones thrown by the protesters. Several of Stoltenbergs friends were arrested by the police after the events.