Lest we forget: lost 1914 poem shows the heartbreak as horses were taken to war

In the first few weeks of the First World War, the British Army requisitioned more than 120,000 horses to serve across the Channel.

In four years of conflict, some eight million horses, donkeys and mules died, and the fate of many remains unknown.

One of those was Black Nannie, the partner of Scottish ploughman William Smart, whose story has been discovered thanks to a poem the heartbroken...