Thousands of protesters are expected to take to the streets today in over 670 cities across the world wearing Guy Fawkes masks, as part of the anti-establishment Million Mask March.

The march, organised by Anonymous, the “hacktivist” group linked to cyber-attacks against governments, multi-national corporations such as Visa, the Church of Scientology and the BNP, is expected to be the group’s largest since the so-called, “Anonymous Army” began its rallies four years ago.

According the march’s London Facebook page, the protests are an attack against the “encroaching destruction of many civil liberties”, the creation of a “surveillance state” and the “government's disregard for migrants, for the poor, the elderly and the Disabled”.

The group have used the Guy Fawkes mask, made famous by the film and graphic novel V for Vendetta, since 2008 as a symbol of their anonymity and are infamous for using social media as a tool to vocalise their agenda.

Million Mask march in London 2015 Show all 10 1 /10 Million Mask march in London 2015 Million Mask march in London 2015 Protesters demonstrate near the Houses of Parliament in London PA Million Mask march in London 2015 Protesters clash with police during the 'Million Mask' demonstration in Central London EPA Million Mask march in London 2015 Marchers wear the Guy Fawkes masks during anti-government and anti-establishment protest in London Rex Million Mask march in London 2015 A police car is attacked and set on fire near Scotland Yard during the annual Million Mask March bonfire night protest started in Trafalgar Square and headed to Westminster where it splintered Rex Million Mask march in London 2015 A man puts on a pig mask during the Million Mask March, London Rex Million Mask march in London 2015 A man is detained by police in Trafalgar Square, London during the Million Mask March bonfire night protest organised by activist group Anonymous PA Million Mask march in London 2015 Police arrest a protester at the 'Million Mask' demonstration in central London EPA Million Mask march in London 2015 A protester comes out with a bloodied head as crowds surge forward on Great George Street in central London, during the Million Mask March bonfire night protest organised by activist group Anonymous PA Million Mask march in London 2015 Protesters take part in the 'Million Mask' demonstration in Trafalgar Square EPA Million Mask march in London 2015 Protesters hold an anti-capitalist banner during the protest in Westminster Rex

Described on its website as the “largest global protest in World History”, “flash mobs” are expected to take place in 675 cities across the world, including Washington DC, London, Argentina and Sydney.

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Anonymous have called on protesters to assemble at “State Capitols & City Halls from 9am to 5pm”, with marches beginning at “rush hour”.

In London, the group have called on protesters to assemble at the Ecuadorian Embassy wearing “white judicial wigs, black robes and Anonymous masks”, while in Washington DC, people have been summoned to “march to Obama’s House”.