He was caught, arrested, and inscripted into the Russian army. He was sent pages of a Gemora, and spent his days on those. He was told one Shabbos, that he must do target practice. So he held the gun upside-down, and shot. Amazingly, on the first try he got the bulls eye. I believe he was forced to run the _____ where soldiers line up from both sides, and beat mercilessly with clubs, while you run through. People died running it.
He was forced to do guard duty, on Shabbos. There was one heavy winter coat that the guard used. One Shabbos, when he arrived the first guard left the coat hanging on the tree. Since one may not remove an object from a tree on Shabbos, he kept on pushing off removing the coat, until it would become pikuach nefesh, in freezing Russian winter. He never removed it.
Once he did make it into Poland, he eventually became a Rosh Yeshiva in a Novardiker Yeshiva, at a young age.
This is not even nearing the surface of who the Steipler was, and what he has achieved for us.