Got a question: the conflicts around the Baltic in the sixteenth and seventeenth centuries had vastly different social and political effects on the countries that took part in them. Poland-Lithuania first formed a Commonwealth at Lublin, and then began decentralization, marked by the oh-so-devastating liberum veto. Muscovy had a somewhat dissimilar feudal system based on servitors, which was rather tumultuous (due to the nature of the autocracy), allowing first the depredations of the Oprichnina and then the Time of Troubles, but also some very notable military successes. Denmark-Norway had a slow decentralization during this time, begun by the strengthening of the Council during the Nordic Seven Years' War and continued to the end of the period. Sweden, however, used war as an excuse to grant the sovereign extraordinary powers in the 1540s and from then on established other centralizing institutions like that of the universal militia, the precursor to the levee en masse.
So the question is, why did each of these develop in its own way? This is part discussion, part question, and I have my own (half-formed) opinions but would definitely like to hear from others.