In August 1920, newly independent Poland stood all-but alone against the newly risen monster of the Soviet Union. The Soviets were looking to eliminate the old bastion of the Church from their borders, as well as give themselves a route to foment and take advantage of the chaos in Germany, hoping to spark a Communist revolution in Karl Marx’s homeland, from whence it would spread through the rest of Europe.
On the Feast of the Assumption, the outnumbered and outgunned Poles smashed the advancing Soviets at the Battle of Warsaw, dubbed “The Miracle of the Vistula.”

-State Motto of Poland
One of the highlights of the battle was a Polish cavalry unit breaking through Soviet lines early on to capture an important radio tower, which they used to broadcast readings from the Book of Genesis in Polish and Latin to the Soviet troops. Which is a quintessentially Polish thing to do.
This video does a pretty good job of summarizing the context and events of the battle. I pass it along to you in the hopes that we can start making this pivotal event better known.