First, Jesse is writing the poem like he will never see his father again after he leaves, so I am suggesting that he is being deployed to Afghanistan or some sort of military venture. Also, he seems like he is willing to do anything to make his father stay from wherever he is going. He even says that his father can hit him if that will make him stay. When he ended the poem he said “goodbye father friend family”, showing that he was more than a father to his son.
All the clues