So, in his final years, King Wladyslaw IV of Poland dreamed of a great war with the Crimea and Turks, there were some alliances and foreign funding organized, Cossacks have been roused (which had very unfortunate results very soon) and the like. But Sejm was not interested in war, particularly with OE or the Khan, and the whole affair had to be called off. Afterwards the king said that he would have done better if he had spent those money on his whores.
So what if it wasnt. Suddenly the king's fatasy begins realizing. Let's say there is some sheep plague or other famine hitting the Khanate, and in result they increase raiding to the point it cannot be ignored. In effect the whole thing escalates to the point Sejm agrees for war and even some moderate taxes, the Venice and Pope provide subsidies, Danube princedoms rise in rebellion, Cossacks raid and burn everything flammable around the Black Sea coasts, especially Ottoman navy bases and shipyards (as promised to Italians), Mediterranean states began nibbling Turks at sea, royal army supported by 50 thousand strong force of Zaporozhians and borderlands magnates invade the Crimea while Moscow strikes towards Azov. Tatars are defeated in the field, their fortresses taken, herds captured and eaten, townspeople massacred (and otherwise abused typically for the period warfare), slaves liberated, Khan's family escapes to Istanbul, the whole package, the khanate basically unravels. What now?
So what if it wasnt. Suddenly the king's fatasy begins realizing. Let's say there is some sheep plague or other famine hitting the Khanate, and in result they increase raiding to the point it cannot be ignored. In effect the whole thing escalates to the point Sejm agrees for war and even some moderate taxes, the Venice and Pope provide subsidies, Danube princedoms rise in rebellion, Cossacks raid and burn everything flammable around the Black Sea coasts, especially Ottoman navy bases and shipyards (as promised to Italians), Mediterranean states began nibbling Turks at sea, royal army supported by 50 thousand strong force of Zaporozhians and borderlands magnates invade the Crimea while Moscow strikes towards Azov. Tatars are defeated in the field, their fortresses taken, herds captured and eaten, townspeople massacred (and otherwise abused typically for the period warfare), slaves liberated, Khan's family escapes to Istanbul, the whole package, the khanate basically unravels. What now?