Small number of North Korean troops are already inside Ukraine, officials say CNNChaos as Russia tries to absorb North Korean troops, Ukraine spies say USA TODAYPentagon says ‘small number’ of North Korean troops in Russia’s Kursk region; Biden concerned Fox NewsNorth Korea and Russia send political shockwaves with Ukraine war moves ReutersUkraine’s Zelenskyy says Russia war is being pushed ‘beyond borders’ Al Jazeera English