Russia has launched a form of cognitive warfare on South Korean soil, striving to justify its invasion of Ukraine by influencing Korean public opinion. A giant 15-meter banner was hung vertically on the wall of the Russian Embassy building in central Seoul. It reads “Victory Will Be Ours,” a slogan used by the Soviet Union during World War II. After beginning its full-fledged invasion of Ukraine in February 2022, the Russian government repurposed the phrase as war propaganda, glorifying the invasion as a defensive response to external threats. Through this messaging, Russia seeks to portray its prolonged war as something akin to the Soviet victory over Nazi Germany. It remains unclear exactly when the banner was installed or how long it has been displayed. What is clear is that it has become a diplomatic headache for the Lee Jae Myung administration. The Ministry of Foreign Affairs called the banner “unacceptable” and formally requested that the Russian Embassy remove it from display. The Russian Embassy, however, turned a deaf ear to the host government’s request. Russia’s w