After Russia claimed to have retaken the Kursk region from Ukraine, North Korea acknowledged for the first time that it had sent soldiers to fight in Moscow’s war.

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They who fought for justice are all heroes and representatives of the honor of the motherland,” Kim Jong Un said.

All Ukrainian troops have been forced from Russia’s Kursk region, Kremlin spokesperson Dmitry Peskov said Saturday. Ukrainian officials have not commented on the claim.

Russian President Vladimir Putin has claimed that his country has regained control of Kursk, the border region where Ukraine launched a surprise offensive last year, though Ukraine’s army says fighting continues.