As the NATO summit wraps up in Washington, D.C., this week, Canada has finally committed to spending two per cent of its GDP on defense, as required by the treaty. But NATO is an alliance forged in a post-WWII world at the dawn of the Cold War. Is it still relevant in a modern, post-Soviet world? Or has Russia's increased aggression in recent years given the alliance a renewed purpose?

Andrea Charron, director of the Centre for Defence and Security Studies at the University of Manitoba, explains how NATO got to this point, what could be next, and Canada's role in it.

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