In the chapter sweetheart of song tra bong has a huge change when fossies girlfriend Mary Anne moves in and starts working. The whole group knows eventually that her soft kind spirit will eventually break and this is exactly what happens.To answer the first question about what transforms Marry Anne into a predatory killer comes from the environment and the change that someone has to make in a stressful situation such as war is that you have to be tough and have strong mindset and Marry Anne has a huge flip of her behavior during and end of the story. Another point to discuss is if it matters that Marry Anne is a woman i think that it doesn’t matter because no matter what the war in Vietnam changes a person inside and you cant stop it from happening.For example the war puts stress and tension on everyone and theirs a lot of negativity and one more thing about Marry Anne is that it talks about in the chapter that when people go out to fight in the war, that they would control the war and the war wouldn’t control them so peoples image of what would happen seems to change. When Rat at the beginning of the chapter is telling everyone of his exaggerated war story i think it does really lack believably because rat is the type of guy who loves talking and talking about himself and i think hes telling stories to seem cool and to impress. One of the biggest reason on why people make up war stories is because its so easy to make things up and we believe all of it from things we see in movies and tv and also video games. Making a good war story also gives the person attention and fame at first and whenever a person leaves the service people expect a really awesome and dangerous story.