thin red line example:
Yes, makin’ mock o’ uniforms that guard you while you sleep
Is cheaper than them uniforms, an’ they’re starvation cheap;
An’ hustlin’ drunken soldiers when they’re goin’ large a bit
Is five times better business than paradin’ in full kit.
Then it’s Tommy this, an’ Tommy that, an’ “Tommy, ‘ow’s yer soul?”
But it’s “Thin red line of ‘eroes” when the drums begin to roll,
The drums begin to roll, my boys, the drums begin to roll,
O it’s “Thin red line of ‘eroes” when the drums begin to roll.
https://www.poetryloverspage.com/poets/kipling/tommy.html