Battle of Cable Street

The Battle of Cable Street took place on Sunday 4 October 1936 in Cable Street in the East End of London. It was a clash between the Metropolitan Police, protecting a march by members of the British Union of Fascists, led by Oswald Mosley, and various anti-fascist demonstrators, including local Jewish, Irish, socialist, anarchist and communist groups. The majority of both marchers and counter-protesters travelled into the area for this purpose. Mosley planned to send thousands of marchers dressed in uniforms styled on those of Blackshirts through the East End, which then had a large Jewish population.

More information on the Wikipedia page.