Is it true that the Tsar Cannon is not... cannon? How have Russian clippers been a headache for British lords for 30 years? Why did the Western Russian fortresses, which were previously considered the strongest in the world, ingloriously fall in 1915? How did a dozen stray cats stop the development of Russian chemical weapons? Why did armored trains become the main striking force in the great Civil War? This and many other things are described in the book "Miracle Weapon of the Russian Empire."