I think that some of the reasoning behind Moses Cooper letting Adam
fight in the war was that Adam was no longer a small child like his brother Levi.
He was growing up, and if he told Adam not to fight in the war he probably would
have anyway. Quote "If I had forbade him to sign that muster book then and
there, I would have lost a son. Is that what you want? But I saw him there so
tall and strong I could have wept. You can't shelter him. There comes a time,
and this is that time" (page 75.)
I think that Moses had to die in order for the story to continue because
if he had lived I don't think that the Battle would have been such a alarming
experience for Adam, and because of the traumaticness of watching his father's
death Adam was able to grow up and become more of a man.
Some of the actions of Moses's death were Adam went into a state of almost
shock, and wept and mourned over his father's death "I sat there and cried. I
hadn't cried so much since I was a small boy... Another result of Moses's death
was the meeting of Adam and Solomon Chandler even though their good friendship
only lasted for a brief time