What impact does the phrase “deportation by cattle car” in paragraph 4 have on the reader’s understanding of the text?

There isn't a question, but i'm assuming this is about the holocaust? If so, i'm not sure cause i don't see a question, but the reader could assume that they were treated awfully, supported by the fact that they were placed in carts made for cattle, rather than carts made for people. I think cattle cars had more room, and that the soldiers didn't think that the jews deserved to be in cars with seats for people.
Not sure if this is your question lol but if it is hope this helps

There is no text so what text is it