What lessons did we learn from the pandemic that still apply now with the war in Ukraine?

Unlike the war or the 2008 global financial crisis, COVID was not an immediate threat we needed to respond to in real time, says former US State Department official Anne-Marie Slaughter, so different countries were affected in different ways, and responded their own way at different times.

"If you're going to use a crisis effectively for change, you have to be able to have the right time horizon, the right group of countries, and a very specific set of goals," she tells Ian Bremmer on GZERO World.