The increasing national security risks posed by Russia and China underscore the need to upgrade Norad's North Warning System. The last time the system was upgraded was in the 1980s. MLI Senior Fellow Christian Leuprecht joined CTV News to discuss why Norad needs to be modernize.

"We live in a much more competitive and contested environment. And so that means that we need as Canadians to take the world for what it is rather than what we would like it to be," says Leuprecht. "It is a place that is highly competitive in all domains - political, economic, military - and so we need to be investing in our defences."

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