The Barrack Room Ballad which is more immediately relevant to the song that started the thread is "Fuzzy-Wuzzy" - a tribute put in the mouth of a Tommy to the enemy in a colonial war in the Sudan.

And I don't think anyone has thought that this was an insult to the British soldiers who fought in that war:

"We've fought with many men acrost the sea
An' some of them was brave and some was not:
The Paythan and the Zulu and Burmese:
But the Fuzzy was the finest of the lot.
We never got a hap'orth change of him, 'E squatted in the scruib an 'ocked our 'orses, 'E cut our sentries up at Suakim, An' 'e played the cat and banjo with our forces. ... Then 'ere's to you Fuzzy Wuzzy, an the missus and the kid;
Our orders were to break you, and of course we went an did
We sloshed you with Martinis, and it wasn't 'ardly fair, But for all the odds against you, Fuzzy-Wuz, you broke the square."

For the rest of it (and the rest of Barrack Room Ballads), try here