#124624, Statue of Viscount Allanbrooke, Whitehall, London. Anti-Brexit march to Parliament Square, London, 23rd March 2019. A million people of all ages marched demanding a 'People's Vote', a second referendum, ('Put It To The People!') to decide if Britain was to leave the European Union (EU) or not.Anti-Brexit march to Parliament Square, London, 23rd March 2019. A million people of all ages marched demanding a 'People's Vote', a second referendum, ('Put It To The People!') to decide if Britain was to leave the European Union (EU) or not.