The story of 'We're here because we're here', the modern memorial created by Jeremy Deller to mark the centenary of the Battle of the Somme. 'We're here because we're here' saw around 1400 voluntary participants dressed in First World War uniform appear unexpectedly in locations across the UK. Each participant represented an individual soldier who was killed on that day 100 years before. The participants wore historically accurate uniforms, representing 15 of the regiments that suffered losses in the first day of the Battle. The soldiers did not speak, but at points throughout the day would sing the song 'we're here because we're here', which was sung in the trenches during the First World War. They handed out cards to members of the public with the name and regiment of the soldier they represented, and, where known, the age of the soldier when he died on 1 July 1916. Each participant represented an individual soldier who was killed on that day. The work is partly inspired by tales of sightings during and after the First World War by people who believed they had seen a dead loved one. The day-long work ran from 7am to 7pm and covered the width and breadth of the UK, from Shetland to Plymouth. Sites they visited included shopping centres, train stations, beaches, car parks and high streets - taking the memorial to contemporary Britain. The volunteers were men aged between 16-52, reflecting the men who would have fought in the Somme. They were not trained actors but come from a range of professions, including a sheep farmer, flight attendant, doctor, lawyer, social worker, shop assistant, portrait artist and GCSE student. They came together to rehearse in theatres across the UK over a month-long period in the run-up to the performance. 'we're here because we're here' is one of the largest arts participation projects ever staged in the UK, with hundreds of additional volunteers working behind the scenes.