I've been reading about the Ukraine

As I was reading Out of the Shoebox by Yaron Reshef (2014, memoir, 266 pages) recently, I stopped to google the Seret River when I read this sentence:

"The town of Chortkow lies in a beautiful valley along the banks of the Seret River in the Ukraine" (p. 73).  (That's a photo of the Seret River.)

Then I googled "Czortkow" and found that the town in Poland known as Czortkow is a city now called Chortkiv in Ukraine.  I tried to figure out why and found this in Wikipedia (quoting Chris Taft, "Before the War," Journey Through The Holocaust, accessed September 4, 2022):

"Frieda Allweiss was born as Freida Schiller on May 21st in 1933, in a small town called Chortkow, Poland, which is now Ukraine.  Freida was an only child and her mother Sarah and her father Marcus both had extended families who lived in the same area.  Her father was a very busy man as he made furniture for the whole area.  He had about twelve people working for him, and all the furniture was hand made at the time.  He was a very fine craftsman, which really helped him during the war.  In 1939, just before WWII started, when she was six years old, the Russians invaded her town because Hitler and Stalin had made a pact and the eastern part of Poland went to Russia.  At that time everything changed and there was no longer any normalcy.  The Russians had a lot of strict rules, but in general Freida and her family were not as bad off as the people who lived under Hitler at the time.  In 1940, when she was seven, Freida started school.  The Russians allowed Polish, Ukrainian, and Yiddish Schools.  That was the first time Freida learned Yiddish, because until then, only Polish was spoken in her house. But for some reason her parents decided that Freida should go to the Yiddish school.  Mainly, there were secular Jews, but her parents were very Zionist oriented, and they felt that Frieda needed to know Yiddish."

This Frieda is not in my book, since she is apparently a real person who once lived in Poland.  Just as in our current world situation, reading books get complicated, especially when we're talking about the Ukraine or any place in the news.  I think both the town and the river are beautiful, don't you?