(UPDATE) WASHINGTON, D.C. — North Korea has sent 10,000 troops to train in Russia and are likely to fight Ukraine in weeks, the United States said, as South Korea warned on Tuesday that the accelerating deployment posed a "significant security threat."
Seoul has long accused nuclear-armed Pyongyang of sending weapons to help Moscow fight Kyiv, and after North Korean leader Kim Jong Un signed a mutual defense deal with Russian President Vladimir Putin in June, Pyongyang is alleged to have moved to deploy soldiers en masse.