More than 1,000 North Korean soldiers were killed or wounded fighting Ukrainian troops in Russia’s Kursk region in the past week, and a few chose suicide over surrender, the Biden administration said on Friday.

South Korea’s spy agency said Friday a wounded North Korean soldier who was captured while fighting for Russia against Ukrainian forces has since died from his injuries, the Yonhap news agency reported.

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.