Apparently, in the First World War, the Highland Regiments still spoke Gaelic. Orders were issued in English.
Here the officer calls to his boys (Ghillean – from which we get the fishing 'Ghilly') to March at Ease. He reminds them of their duty to the king and of their home, but I can’t speak the language.
So in the advance on the road to Arras, the poet, who served in the Cameronians (I think) wrote…
Oran Arras
Ghillean, march at ease!
R'gh na s'th bhith mar sinn
A’ dol chun na str'
’S chun na cill aig Arras,
Ghillean, march at ease!
Tha nochd oidhche Luain
Teannadh suas ri fàire
A’ dol chun na h-uaigh
Far nach fhuasg’lear barrall
Ghillean, march at ease!
Tillidh cuid dhinn slàn
Cuid fo chràdh làn fala
’S mar a tha e ’n dàn
Roinn le bàs a dh’ fhanas
Ghillean, march at ease!
Gus ar t'r a dh'on,
Eadar liath is leanabh,
Mar dhaoin’ às an rian
N' sinn sgian a tharrainn,
Ghillean, march at ease!
Gura l'onmhor fear is tè
Tha ’n t'r nan geug nan caithris,
Feitheamh ris an sgeul
Bhios aig a’ chlèir ri aithris
Ghillean, march at ease!
Gura l'onmhor sùil
Shileas dlùth ’s nach caidil
Nuair thig fios on Chrùn
Nach bi dùil rim balaich
Ghillean, march at ease!