Russia launched a massive attack on Ukraine’s energy grid, leaving many in the country in the dark over the holiday. Retired Col. Jack Jacobs shares his thoughts about recent developments in Ukraine and a potential twist in North Korea’s involvement.

North Korean troops are suffering heavy losses in the fighting in Russia's Kursk region and are facing logistical difficulties as a result of Ukrainian attacks, Ukraine’s military intelligence said Thursday.

Ukrainian President Volodymyr Zelensky confirmed Monday more than 3,000 troops from North Korea have been killed so far fighting next to Russian forces.