U.S. President Joe Biden said on Wednesday he had asked the Defense Department to continue its surge of weapons deliveries to Ukraine, after condemning Russia's Christmas Day attack on Ukraine's energy system and some of its cities.

Ukraine's air force says it detected 184 missiles and drones, causing damage to energy infrastructure across the country.

Ukrainian forces launched an incursion into Russia’s Kursk region in August, a move that undermined Russia’s military prestige and forced it to redeploy troops from eastern Ukraine, where its offensiv

North Korean troops are suffering heavy losses in the fighting in Russia’s Kursk region and facing logistical difficulties as a result of Ukrainian attacks.

North Korean troops deployed in Russia’s Kursk Oblast continue to suffer significant losses, Ukraine's military intelligence (HUR) reported on Dec. 26.