South Korea is a close US ally, but also shares a border and does a lot of trade with China, so it's always walking a tightrope between Washington and Beijing. The South Koreans, says veteran Korea correspondent Jean Lee, are worried about growing US-China competition — but there's not much they can do about it. "We can't choose. We live next to China, we have lived next to China for millennia, but we are a staunch US ally," she explains. "I think there's no question that their loyalty lies with the United States, but it's very clear as well that so much of their financial future lies with China as well. Watch a clip of Lee's interview with Ian Bremmer on GZERO World.

Watch this episode of GZERO World with Ian Bremmer: The Korean Peninsula from K-Pop to Kim Jong-un

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