Answer:
Believes the reasons for fighting become muted over time and eventually all that matters is staying alive.
Step-by-step explanation:
This is the statement that best expresses what the author thinks about war. In these lines, we learn that the author thinks that war eventually becomes about survival. This occurs because soldiers become desperate to live, and they forget about the spirit of adventure they might have started with. More importantly, the reasons why the war started become less and less important as time goes by.