Strategic Axis with Prussia

In the second decade of the 17th century Brandenburg inherited the Duchy of Prussia. Brandenburg-Prussia was a Protestant state with high tolerance towards Reformed and she approached Jerzy I with an offer. Lithuania and Brandenburg should sign a Holy Protestant Alliance and wage war on Poland. Brandenburg would be freed from her Prussian vassalage by Poland and Lithuania would be whatever she wanted and could demand from Poland. A faction of young governmental official cherished it, but the king was a very careful man. He and his closest advisors hesitated. Their conclusion was very plain. First it was an impossibility to support Germans against Poland in a war of aggression. Secondly, the worst possible thing was total victory. If Lithuania took a mile of Polish land it would be a mile too much. Any conquests would include more Catholics and Orthodox and worse, more unruly magnates brought up in the Polish Anarchy of a country. So the king politely declined the honor, but instead he proposed a tract of trade and cultural exchange. However as most politically well-informed Lithuanians could have guessed, not much came out of it. The Society of Brandenburg-Prussia had far more in common with Poland than with Lithuania.