Military Voices: The Armed Forces' first professional choir performs on Breakfast

The battlefields of World War One fell silent on the 25th of December 1914. Legend has it that soldiers from both sides sang carols and played football, in what's now known as the Christmas Truce.

To commemorate the 100th anniversary of that day, a single - performed primarily by serving members of the Armed Forces - has been released. We got a sneak peek on BBC Breakfast.