Search:

Yes, arses. Yep, "holland mountains" are for humorous effect.
It's not very long:



P.S.
"The evil genius was angry and clever"
"From holland mountains (they flew) into (our) deep rear,"
...

It's not about army, but about territories far behind front lines.

Part of my little humorous poem about cold war times:


Note, that "Проник в тылы советских кур," humorously means "Enters...