All of you are missing the point. There was WW I. Then WWII. Then the Vietnam War. Each of these wars consumed one generation of men after another. Men usually went off to war just after they started a family. Imagine the young father telling his young son as he goes off to war, "Try to be a man and someday, you will understand." Someday never comes because just as you are old enough to understand, you go off to war and you are killed. That is why "someday" never comes. The song is trying to convey the tragedy of war. It starts off with a very somber and thoughful beat and ends in the same way. It is a song that is so poignant and expressive that when you grasp the meaning of the sorrow that war inflicts upon families, tears come. Listen to the tone of the music and the lyrics and the meaning will dawn upon you.