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It's a military term and most likely it's literal. In Russian there's a difference between "эскадра", "эскадрилья" and "эскадрон" (which all are translated in English as "squardron").

"Эскадра" is...

Ok, I'm not a poet, so it's the best I could do: :)

1)
The squadron is at our heels

2)
In the wild steppes of Transbaikalia,
Where gold is mined from the mountains
A wanderer, cursing his...