Ukraine launched a large-scale drone attack on Russian military air bases, targeting bombers used in attacks on Ukrainian cities. The operation, dubbed "Operation Trojan Trucks," involved drones hidden on trucks and resulted in the reported destruction of 41 heavy bomber jets, according to Ukraine. Russia downplayed the damage. The attack, coinciding with planned peace talks in Istanbul, has shifted the negotiation dynamic. Simultaneously, Russia conducted a massive drone and missile assault on Ukraine, causing significant casualties, leading to the resignation of a Ukrainian military commander. Train derailments in Russia are under investigation.