The Polish and the Hungarian governing party, PiS and Fidesz, are mnemonic warriors who had already tried to enforce their memory politics during their first government terms, as their flagship museums, the Warsaw Rising Museum, opened in 2004, and the House of Terror in Budapest, opened in 2002, show. In museums they ‘inherited’ from their predecessors, the current governments either change content, as PiS at the Museum of the Second World War in Gdańsk, or ‘only’ battle against the directors in office, as happened at the Museum of the History of Polish Jews in Warsaw and at the Holocaust Memorial Center in Budapest. Yet even mnemonic warriors cannot ignore international developments like the ‘universalization of the Holocaust’. As the author shows, the Polish and the Hungarian governments favored opening new museums over changing existing museums identified as ‘Jewish’, including those that explicitly deal with Polish and Hungarian complicity. New museums, like the Ulma Family Museum in southeastern Poland, the House of Fates in Budapest, and the Warsaw Ghetto Museum, focus on rescuers of Jews and uplifting messages of Polish and Hungarian heroism.