Click or tap on the items below to find out how a soldier's medals, photos or cap badge can help you investigate what he did in World War One. Start activity JavaScript is required to view this ...

As preparations continue to mark the centenary on Tuesday of a key World War One battle in Northern France, Reeta Chakrabarti looks at the legacy of WW1 Commonwealth soldiers.

Military historian Andy Robertshaw talks through the uniform worn by soldiers in the British Expeditionary Force at the start of World War One.