Thank you.
So in my current Ironman France game I am in 1570 and:
Have the following vassals:
England,
Portugal,
Aragon,
Styria,
Mecklenburg (Elector),
Saxony (Elector),
Palatinate (Elector),
Papal State (I am Papal Controller)
I am currently annexing Holland and Gallicia, Integrating Hungary which I got PU from Austrian Succession war and working on making Castille a vassel too
Bohemia is the current Emperor
I am not currently part of the HRE. I want to keep Castille, England and Portugal as vessels so not annex them because I want them to keep exploring and colonizing. In the future I want to add Norway as a vassal also.
So what strategy do you think I should follow in the east? Austria is pretty weak currently as are all central European powers. Only strong powers are Ottomans, Russia and Sweden. Brandenburg is medium strong but I am allied with them. (12/10 relations currently)