Archaeologist, historian and author Andy Robertshaw talks about his work with the Centre for Experimental Military Archaeology (CEMA) at the Kent Event Centre in Detling. CEMA is the home of pan-historical experimentation concerning methods of military attack and defence, and of soldiers’ day-to-day lives, from the Roman period to the Second World War. Andy outlines the new WW1 trench system they have created at CEMA and how this is helping understanding of the Great War. More information about CEMA is at https://cemahistory.org/about-cema/