Ceding large swathes of Ukrainian land to Russia under a peace proposal suggested by US President Donald Trump would be “a capitulation,” Germany’s defense minister warned on Sunday, as North Korea acknowledged for the first time it had deployed troops to fight for Moscow.

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.

North Korea confirmed for the first time on Monday that it had sent troops to fight for Russia in the war in Ukraine under orders from leader Kim Jong Un and that it had helped regain control of Russian territory occupied by Ukraine.