Ukraine has confirmed a strike on an oil refinery located in Moscow, asserting it was a “justified response” to ongoing Russian attacks. President Volodymyr Zelenskyy framed the action as a necessary measure given Russia’s continued targeting of Ukrainian energy infrastructure. The attack reportedly utilized drones, though details regarding the extent of damage remain limited. Russian officials have condemned the strike as a terrorist act and vowed retribution. This marks a significant escalation in Ukraine’s strategy, extending attacks to within Russian territory. The move signals a potential shift in Ukraine’s defensive approach, moving beyond solely defending its own airspace and territory. International reaction has been muted, with calls for de-escalation from several nations.