In light of the recent advances of Russian troops in Donetsk, Zaporizhzhia, and Kharkiv oblasts, the country now faces a new challenge: defending the positions gained in the August cross-border offensive.Ukrainian soldiers are holding off nearly 50,000 troops in Russia's embattled Kursk Oblast, President Volodymyr Zelensky said on Nov. 11.Spared from decreasing the number of personnel conducting assaults in Ukraine's east and beefed up by over 10,000 soldiers from North Korea, Russia is likely to attempt to launch a major offensive from the north, potentially not stopping at the now nonexistent border. This is how North Korean troops could be used in Russia’s war in UkraineRussia’s war in Ukraine may have reached a new stage this week, with reports that North Korea has moved from supplying Moscow with weapons to sending its own troops.