Joe Clark: 'How We Lead: Canada in a Century of Change'

When the Berlin Wall fell in 1989, the floodgates opened; a new type of international relations began to develop. Gone were the times of singularly powerful nations shaping the political conversations. Today the world is a very different place than it was just 25 years ago.

But where does Canada fit in the puzzle? Are we leaders, or followers, supporters, or interferes?

On this week's episode of Think, Canada's 16th Prime Minister returns back to his alma mater to advocate for a new approach to Canada's foreign affairs.