Group 1 - Ukrainian military conducted drone strikes on multiple Russian targets, including a major oil refinery and military facilities [1][2] - Specific targets included the Ryazan oil refinery, the New Khabarovsk oil refinery, a fuel storage facility in Voronezh, and an electronic instrument factory in Penza [2][3] - The electronic instrument factory is crucial for Russia's military and intelligence sectors, producing encryption devices used in aerospace and military applications [1] Group 2 - Russian defense ministry reported the downing of 338 Ukrainian drones within a 24-hour period [3] - Russian military launched offensives in various regions, resulting in casualties among Ukrainian forces and targeting production facilities and control points for drones [3]