The poem depicts a young soldier writing letters home to his mother about his experiences in war. In his early letters, he writes vaguely about the weather to avoid upsetting her. When she presses him to share more, he describes killing a man and dropping napalm on civilians. His father then tells him to stop writing such depressing letters, as it upsets his mother. In later letters, the soldier reverts to only discussing the weather to spare his mother the horrific truths of war.