Russian President Vladimir Putin, right, and North Korea's leader Kim Jong Un agreed to a mutual defence pact last year.North Korea has suffered more than 5,000 casualties in the Ukraine war, according to UK intelligence.
Around one-third of them have been killed in action while fighting for Russia, the Ministry of Defence said in its latest update on the conflict.
North Korean leader Kim Jong Un sent around 11,000 fighters to help Russia last November.
They have been fighting in Kursk, the Russian territory invaded by Ukraine in a surprise move last year.
The MoD said: “As of March 2025, Democratic People’s Republic of Korea (DPRK) forces had highly likely sustained over 5,000 casualties in offensive combat operations against Ukrainian forces in the Russian oblast of Kursk, with approximately a third of the casualties killed in action.”
Although the Russian and North Korean troops have gained territory in recent weeks, the MoD said Ukraine still has “at least a foothold” in the region.
Latest Defence Intelligence update on the situation in Ukraine - 28 March 2025.
— Ministry of Defence ???????? (@DefenceHQ) March 28, 2025
Find out more about Defence Intelligence's use of language: https://t.co/waZc3eN8zw#StandWithUkraine ???????? pic.twitter.com/Kba1Vs2nXm
The update comes amid ongoing attempts by the US to broker a peace deal between Russia and Ukraine in a bid to end the war, which began in 2022.
