i don't understand why is the polish government paying ads in czech trying to convince people cpk is an amazing idea

https://blovice.bahnhof.cz/media/e959edcda8f34e950b9d16a9e1507dfea789f93d99dfa34d83cb3c30b5a6c082.png 

 @Cat poni, Whorseman of Apocalypse they want Czech railfans to visit it