Why is Norway is expanding its armed forces now?

The Norwegian government posted this brief video explicitly for the benefit of English-speaking audiences a few weeks ago. The YouTube comments are turned off, but the description reads as follows,

“We asked the question: Why do we need the armed forces and a military? In the end what do we, as a nation, want to happen? This is the answer.”

The video is brief and well-produced. I’ll provide that referenced answer after the jump just in case anyone will consider it a spoiler for me to do otherwise.