Ukrainian President Volodymyr Zelensky has confirmed that Ukrainian forces have conducted a cross-border incursion into Russia's Kursk region, marking a significant escalation in the conflict between the two nations. The incursion, which has been a major embarrassment for the Kremlin, was officially acknowledged by Zelensky, who praised the Ukrainian military for pushing the war into the aggressor's territory. This operation represents the first time regular Ukrainian and special operations units have entered Russian soil, as opposed to previous airstrikes and limited cross-border attacks.