Ultra nationalism. This can be very extreme, and take the form of uniting everyone who speaks the same language. For instance Italian speakers exist in what is now France, Switzerland, and the Balkans. Italian irridentists (language extremists) at the end of WWI wanted to forcibly incorporate those territories into Italy, regardless of what minorities wanted. This brings me to the second feature of fascism, the complete disregard for human rights. Fascists believe in the supremacy of the state, not in individual rights or even individualism as a principle. Artists doing their own thing are just bourgeois fools, useless to society unless they put out propaganda. Fascism makes a religion out of a political creed, and woe to the heretics. Fascism is extremely militaristic. The nation can only grow by absorbing other territories, and mostly that means by war. Any pretext will do, and any sort of violence, no matter how criminal, is fine. Lastly, fascists usually pose as the champions of morality. This is what the Nazis did - they screamed about homosexuality and prostitution and the decadent West. The only thing is, their idea of morality meant that the weak are useless and have to be disposed of, which included retarded and crippled children in institutions. When fascists scream about morality, dig beneath the surface. It's usually driven by hatred and a fear of contamination.