Ukrainian, Swedish, Tatar and Turkish invaders
Sorry, that's quite insulting. Ukrainian slavs have populated this area for centuries, just think for example about the Kingdom of Halych-Volyn and most of the important cities were founded by Ukrainians. I do not deny that you left your traces there, but still it's our land and we will always be the rightful owners. Lviv is as Polish as Gdánsk is German or Warszawa is Russian – not a single bit.
Excuse my harsh words, but it's a sensitive subject to me.