Could Putin use North Korean troops against Ukraine?

Thousands of North Korean troops have been sent to Russia to support their war in Ukraine. The US government says thousands of troops are now in the Kursk region – right next to the Ukrainian frontline. Can North Korean soldiers fighting for Russia change the dynamics of the war in Ukraine? And how does North Korea benefit from this arrangement?

Katya Adler speaks to the BBC’s Ukraine correspondent James Waterhouse and Seoul correspondent Jean Mackenzie about whether North Korea's entry into the Ukraine war will turn it into a truly global conflict.

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