Now, wait a minute, wait a minute, wait a minute.
According to Ukrainians, "borscht" is strictly a Ukrainian dish, and nobody else knows how to make it correctly.
Now, admittedly my whole "eastern European" life-experience involved only Ukraine (one year), Russia (eight months), and Moldova (four days, there illegally), but my mother was of Slovakian descent, and she never mentioned borscht.
She made all these other Slovakian foods, such as meat wrapped in cabbage (ugh), and poppyseed rolls (the food of the gods), and a bunch of other Slovakian stuff whose names I no longer remember--but she never in her life mentioned the word "borscht," as it was perhaps unknown to her, being a Ukrainian delicacy.
"According to Ukrainians, "borscht" is strictly a Ukrainian dish"
There is the red one (with beets) and the white "borscht", which in Poland is sometimes called Ukrainian borscht. The second one was probably "invented" in Ukraine, but both of them are popular in Poland.