This is coolbert:
From Professor Al Nofi and his CIC # 441 we have this interesting item:
"During NATO operations in Bosnia, the troops of the Royal Welch Fusiliers sometimes resorted to their native language for emergency communications, since it is virtually unknown outside of their country."
Analogous to the American Indian Navajo code talker from the era of World War Two [WW2]. The use of code talkers much more extensive that what I had realized.
I might add not only emergency communications but also SECURE emergency communications.
AND this not a single occurrence existing in a vacuum:
"A similar system employing Welsh was used by British forces, but not to any great extent during World War II. Welsh was used more recently in the Balkan peace-keeping efforts for non-vital messages."
That language of Wales of ancient and venerable origin, spoken in that part of Great Britain long before the arrival of the Anglo-Saxon and the development of English as English understood today.
Units of the British army still maintain their regimental tradition based to an extent on regional and ethnic affiliation. Distinct units of Scots, Welch, etc.
Various spellings of Welch, Welsh all occurring.