What could spark a US-China war?

Ask national security experts how they view China today and they'll likely the use a term like "adversary" or "economic competitor." But what about "enemy?" How close is the world to all-out-war breaking out between United States and China? According to US Admiral James Stavridis (Ret.), who served as Supreme Allied Commander to NATO, those odds are higher than many would like to admit. In fact, Stavridis says, the US risks losing its military dominance in the coming years to China. And if push comes to shove in a military conflict, it's not entirely clear who would prevail. Admiral Stavridis speaks with Ian Bremmer on GZERO World and makes the case for why the fictional depiction in his bestselling new military thriller 2034 of a US-China war could easily become reality.