This is a movie that shows that war is hell. The attack is a fact of life. This is what happened. But younger generations also have not lived through a controversial war like Vietnam and aren't as cynical about unabashedly patriotic messages. Attitudes toward war in society are cyclical.
Films made by veterans tend to be more realistic and dark.
This goes on until the end of the 1930s and early 1940s. And the first step, from a sociological point of view, is redeeming the last war. Some of this was dictated by the U.S. government, which leaned on Hollywood to release positive portrayals of the military during World War II, editing scripts to make films into recruitment propaganda. But many films, including John Wayne's gallant war stories of the 1950s and '60s, simply played to a nation high off the victory. A turning point for war films comes in 1970, as the nation becomes more disillusioned with the conflicts in both Korea and Vietnam.