In recent years，some western countries used the controversial issues in the history of World War Ⅱ as an effective weapon to criticize Russia. Putin tried his best to defend Russia on various occasions，and his core points were threefold：First，the Soviet Union played a decisive role in defeating Nazi Germany. Blames on the Soviet Union for its responsibility of the origin of World War Ⅱ was unilateral. All the major European countries involved the war were in fault. The Soviet Union was not only the “liberator” of Europe，but also the defender and practitioner of the ideal of “unified Europe”. Putin’s debate fully draws on the latest research results of the Russian academic circle，and attaches great importance to the key role of historical archives. Both opinions and historical facts have undergone rigorous academic testing，which is in contrast to the ideological propaganda of the Soviet era. In the process to win this debate，Putin clarified that the spirit of the “Great Patriotic War” is “the foundation and core values of Russian society”，and it is a unique national character of Russia. In the future，Putin will continue to mobilize all resources and forces to consolidate，strengthen，and even further beautify this new “national character” and will never allow it to collapse.