What does the use of fiction in the novel “ The Things They Carried” reveal about Tim O’brien’s perspective on the Vietnam war?

What does the use of fiction in the novel “ The Things They Carried” reveal about Tim O’brien’s perspective on the Vietnam war?
Make sure to relavently answer this question . The topic of perspective is important.
The essay needs to have good relavent evidence from the book, but can also use outside secondary sources and reffer to them.