"Ukraine will be forced to actually fight against North Korea in Europe."Zelensky's comments come amid reports that the Biden administration believes that a contingent of North Korean troops is en route to Russia’s Kursk region to assist Moscow in countering a Ukrainian offensive launched there in August. Zelensky said on Oct. 25, citing intelligence reports, that Russia is planning to send the first North Korean soldiers to a combat zone on Oct. 27-28. These soldiers are reportedly receiving training at five military training grounds in Ekaterinoslavka, Knyaze-Volkonskoe, and Sergeevka, as well as in Ussuriysk and Ulan-Ude in eastern Russia.Although U.S. officials have not confirmed South Korean reports that North Korean soldiers will engage in direct combat, they estimate the North Korean force could number in the thousands and may rapidly be assigned to combat roles, the Wall Street Journal reports.Estimates on the number of North Korean troops sent to the Ukraine-Russia front line have varied.