BEXHILL, ENGLAND—BBC News reports that the site of Cooden Camp, a World War I training camp that ... and 13th Battalions of the Royal Sussex Regiment trained at the site before many of them ...

Cooden Camp was used as a base for troops sent to the front line during the Great War. Among those trained there were soldiers of the Royal Sussex Regiment, which suffered devastating casualties ...

Written in 1907, it was used as a marching song by the Royal Sussex Regiment during World War One - something that might strike a chord with Harry, who has served with the British army in Afghanistan.