What is the theme in The Greatest Generation by Tom Brokaw?

Values are another theme of the book. Brokaw is constantly alluding to the values of the World War II generation even though he does not always call it values. Consider the section on values and commitment. Many couples married hastily during the war. The husbands were away for many years and the wives had to fend for themselves. Some never saw their children and others only saw them once or twice during the war years. After the war when the husbands returned home, they had to adjust to civilian and family life.