Imagine that it is about 1850 in the United States and the British, who have the finest army in the world, invade the U.S. through the East Coast. The citizens of the area who have not been threatened by any enemies since the war of 1812 are more interested in trade and welcome the invaders who promise more states rights and low taxes. Additionally, the great slave holder families of the South provide monetary and physical support to the British invaders. Meanwhile, in the West, the small U.S. army faces an uprising of all the Indian tribes but this time they are united and number two hundred thousand. Additionally, the Mexican army joins the Indians and begin a campaign of pillage and murder across the southwest U.S. Only small groups of soldiers remain faithful to the central government, but they form the basis for a national renewal that eventually drives the British out and pushes back and punishes the Indian and Mexican forces. Large parts of the nation are desolated with farms destroyed and hundreds of towns and villages burned to the ground. Now switch this scenario to the Polish Commonwealth in the mid-eighteenth century.

Instead of the British invading, you have the Swedish army, the finest in Europe and victors during the terrible Thirty Years War. Instead of the Indians, you have the Cossacks, and the Mexicans are really the Tartars who are invited in by the Cossacks. Tens of thousands are killed as Ukrainian peasants join the Cossacks, attack the Poles, and slaughter the Jews who are seen as oppressive minions of the Polish overlords (in fact, until the Holocaust of 1939-45, this time was remembered in Jewish history as the greatest Jewish tragedy since Biblical times). Meanwhile, the Tartars capture a hundred thousand Ukrainian peasants and march them off to the Crimea where they were sold as slaves in the vast slave markets. To make matters worse, the most powerful Lithuanian prince helps the Swedes while the Russians stand on the border, ready to invade when the Poles are finally defeated.