Five years after an armed revolution - supported by a NATO-led air campaign - resulted in the overthrow and death of Muammar Gaddafi, Libya continues to find itself in turmoil.

The UN-backed government finds itself under repeated threat from armed militias.

But who's to blame?

In this week's Headliner, former NATO Secretary-General Anders Fogh Rasmussen defends the airstrikes on Libya that led to the toppling of Gaddafi.

According to Rasmussen, the ensuing turmoil in Libya isn't due to NATO's "model intervention", but because the "international community did not follow-up politically".

"It was a very successful military intervention," Rasmussen says. "I had expected… the UN to stand ready to assist the new authorities, but the UN didn't."

Anders Fogh Rasmussen's latest book is The Will to Lead: America's Indispensable Role in the Global Fight for Freedom.

Anders Fogh Rasmussen's latest book is The Will to Lead: America's Indispensable Role in the Global Fight for Freedom.