Donald Trump, the self-proclaimed ‘deal maker extraordinaire’, is finding the Korean Peninsula tough going.

For all his claims of friendship with the North Korean dictator Kim Jong-un, Pyongyang seems no closer to giving up its nuclear arsenal. America's strategic partnership with South Korea is looking increasingly strained too.

Stephen Sackur interviews South Korean Foreign Minister Kang Kyung-wha. Her country is currently out of step with both the US and Japan; how vulnerable does that make South Korea?

Image: Kang Kyung-wha (Credit: Athit Perawongmetha/Reuters)