The unusual public confrontation between Ukraine and South Korea has raised questions about how relations between two nations facing the consequences of growing Russian-North Korean military cooperation deteriorated so sharply. Shweta Sharma reports

The soldiers’ military backgrounds and firsthand knowledge of North Korea’s deployment to Russia could result in more extensive debriefing

The two soldiers were captured by Ukrainian forces in Russia’s Kursk region in January last year

China and Russia employing most of North Korean labourers who send their remittances back to North Korea