Fighting Fascism

Anarchists are, by definition, anti-fascist. They oppose all forms of fascism just as they oppose all forms of statism, domination, and oppression. What's left to be settled, however, is what our anti-fascist commitment entails in practice. What should our theoretical debates surrounding the nature and danger of fascist ideas imply for our practical strategies for creating the new, anti-fascist world in the shell of the old, fascist one?