The second of our reports on the Battle of the Somme in the First World War. Derek Johnson joined a team of archaeologists who are unearthing intriguing details about the trench warfare.
Thousands of soldiers died in The Somme and their bodies were never found. A new exhibition commemorating the lives of some of those missing men, including some from the South, has opened in France. Relatives crossed the Channel for the opening, Derek Johnson reports.