The Australian general strike of 1917 began 100 years ago on 2nd August. It was not strictly ‘general’, as it was mainly confined to New South Wales. Nevertheless, there are numerous lessons that can be drawn from it. It showed that in times of crisis, the capitalist class will use all tools available to them to defend their privileges. Most importantly, the strike clearly exposed the limitations of the reformist trade union leaders, who acted as the biggest brake on the success of the strike.