I posted this question before, but as I noticed, the question looked very vague, so I will try to explain it better now.
The question is about the parallels between the texts mentioned in the title. Here is the picture of the parallels hightlighted.
In both stories:
Someone tries to build a tower and fails.
A king/emperor meets his army for an attack.
Do these parallels seem significant at all to make a conclusion that Luke was inspired by Josephus?
I want to note that I found this picture on a pretty pseudo historical website advocating for some ''Flavian creation of Christianity.''
I hope my question is more clear now.