“They (the West) took Finland and dragged it into NATO! Why, did we have any disputes with Finland? All disputes, including those of a territorial nature in the middle of the 20th Century, have all been resolved long ago,” Putin said in an interview published on Sunday. “There were no problems, but now there will be, because we will now create the Leningrad military district there and definitely concentrate military units there,” Putin added
https://edition.cnn.com/2023/12/17/world/putin-warns-problems-finland-nato-intl/index.html