Complex sentence: Vigrid disputes claims of a Jewish Holocaust during the Second World War, and argues that both the number of dead Jews is exaggerated and that the Jews killed during the War were the result of the Allied bombing, not Nazi genocide.
Split into simpler sentences: Vigrid disputes claims of a Jewish Holocaust during the Second World War, and argues that both the number of dead Jews is exaggerated. They claim that the Jews killed during the War were the result of the Allied bombing not Nazi genocide.