Henry is talking about the brief lack of activity before he begins the school of fire and how he must wait before he is able to fly. He also describes how important the role of the aerial observer is.
Henry is one of the fortunate fifteen to get to go to specialized training before other members of his unit. He also talks about how helpful the American forces will be as they have been in France and becoming familiarized with it's language, layout, and the people.
Henry talks about learning that he has been in four campaigns and has been able to remain in the Artillery despite a mass transfer of men to the Signal Corps.
