Men of Harlech: Regimental March, HM Welsh Guards.
http://www.youtube.com/watch?v=3jXFebAjVco
"Men of Harlech" or "The March of the Men of Harlech" (Welsh: Rhyfelgyrch Gwŷr Harlech) is a song and military march which is traditionally said to describe events during the seven year long siege of Harlech Castle, Wales, between 1461 and 1468."
