What are the key points Laura Hillenbrand makes about the war and postwar experiences of Louis Zamperini?

The key points that Hillenbrand used were the violence with the prisoners of the Japanese army and the trauma that the post-war period can cause.

Explanation:

This question is about the book "unbroken" where Hilenbrand tells the experiences of Zamperini, a veteran of the second world war. In his book Hilenbrand focuses on the experiences that Zamperini had as a prisoner of war in Japan and all the violence he was subjected to that generated terrible trauma that almost ended his life after the war, but that he managed to overcome.

its probably fingerprint or personality