This Welsh song has been sung in one form or another for 600 years or so. It is the song sung by the small band of Welsh infantry to keep up their morale in the face the Zulu hordes at Rorke's Drift. There are many versions of the lyrics, some published as long ago as the 1700s, this set is the one used by Welsh regiments in the British Army.
I was reminded of this by a post from
SGT (Join to see), who seems to have become something of an inspiration to me, around here. Thank you, David.