> Sweden had spent the previous century invading and destroying Central and Eastern Europe
Alongside Russia [1]. Also, all this happened in the 17th century. When Russia was still finishing its conquest of Siberia [2].
[1] https://en.m.wikipedia.org/wiki/Russo-Polish_War_(1654–1667)
[2] https://en.wikipedia.org/wiki/Russian_conquest_of_Siberia#17...