Kyiv believes battlefield experience gained by North Korean troops in Russia-Ukraine war could be a threat against the South.

Ukrainian and South Korean intelligence services have said that many of the troops deployed to Russia are some of Pyongyang’s best, drawn from the 11th Corps, also known as the Storm Corps - a unit trained in infiltration, infrastructure sabotage and assassinations.

A former North Korean soldier has said that troops from the rogue state who are fighting in Russia as part of Vladimir Putin's war in Ukraine may look to flee from the front line.