21 December 2024 in Russo-Ukrainian war

• Russia attacked Ukraine with kamikaze drones
• Drones flew into high-rise buildings in Kazan
• Russia launched 113 drones
• Prime Minister of Finland: The border with the Russian Federation will remain closed indefinitely
• A new checkpoint was opened on the border of Ukraine and Poland
• Orban: Hungary is conducting negotiations on the supply of gas through Ukraine
• There were 39 attacks in Kurshchyna during the day, and fierce battles were taking place
• The Russians hit the Kherson district with 11 aerial bombs
• Anti-aircraft defense against Russian drones worked in the Kyiv region
• Russia announced a drone attack on an oil depot in the Oryol region
• The Russian Federation lost 1,820 soldiers per day