The article is devoted to the new archival documents, which confirm the participation of Kazakhs in the struggle against fascism, help to learn about the fate of people caught in fascist captivity who participated in the European Resistance Movement in France, Italy and other countries. Finding the burials of the deceased heroes, restoring the names of the heroes officially believed to be missing, is an important task for the formation and preservation of the historical memory of the Kazakh people, for the restoration of a real, true history of the World War II. Circumstantial research on the topic with extensive use of European archival materials has not been carried out, despite social and scientific demand. The sources of these new data should become not only Kazakh but foreign archival documents too. A multipurpose, interdisciplinary exploration of problems of Kazakhs' participation in the World War II based on new documents extracted from the archives of France, Belgium, Italy, Russia and Norway is a main target of the international research project "Kazakhs in the World War II: new documents from foreign archives". Scholars historians from Kazakhstan, Ukraine, Italy and Israel take part in it.