Man vs. Man is prevalent in Fahrenheit 451 through the alliance turned rivalry between Montag and Beatty. Beatty ends up being killed by Montag in part three of the book.
Man vs. Society
Montag struggles with internal conflict as well. Clarisse's seemingly odd questions make him realize that he is not truly happy, so he tries to find consolation in books and studying with Faber.
Man vs. Nature
In Montag's society, It is not uncommon for people to have rooms where the television takes up the entire wall, and there are two of these wall televisions in a room at the least. You are sent a script so that you can act pout the show along with the people on your television. Often times people dedicate their entire lives to their "parlor rooms", and Montag's wife Mildred might be the greatest victim of all.
Montag's society is quite flawed. On top of them burning books, teenagers purposely hit classmates with cars for fun. There have been at the least 3 atomic wars since 1990 and no one bats an eye. People do not need to get certified to practice medicine as they simply carry around machines that do the job. Neighbors less about the people that they have been living near for 5 years and more about their televisions. This is simply the surface of Montag's backwards society.
Living in a society where there is little time spent seeing true nature as it is seen as pointless, Montag does not have the best look on nature and its beauty. he refers to the land as a menacing creature and finds comfort when he sees something man made.
Fahrenheit 451's theme is that good things can become terrible when we use it too much or misuse it, and the ways of the past can still be used today, even if they are old.