WATCH: ‘Relatively small number’ of North Korean troops in Russia’s Kursk region, Pentagon’s Ryder says PBS NewsHourSmall number of North Korean troops are already inside Ukraine, officials say CNN10,000 North Korean troops in Russia, inching closer to fight in Ukraine: Pentagon The HillChaos as Russia tries to absorb North Korean troops, Ukraine spies say USA TODAYNorth Korea sends foreign minister to Russia as its troops train to fight against Ukraine The Associated Press