The first thing to pop into my head upon seeing the prompt was the song Ruby, Don't Take Your Love to Town written by Mel Tillis and originally recorded in 1967 by Johnny Darrell, who scored a number nine country hit with it that spring. Even though the song has been covered by Waylon Jennings, The Statler Brothers, Roger Miller, Bobby Bare, Leonard Nimoy, and others it was made the most famous by Kenny Rogers and the First Edition in 1969 during the time of the Vietnam War.
The song is about a disabled veteran who lies in bed helplessly while his wife, Ruby, gets herself all dolled up and ready to go out for the evening leaving her husband behind with legs that are "bent and paralyzed" as she goes out to take care of her own wants and needs. Adding insult to injury is the fact that the wounded veteran knows that if his wife just had some patience, it wouldn't be long before the job that the war started was finished and he would no longer be around for her to step out on.
Even though the song refers to "that crazy Asian war", Mel Tillis actually based it on the real-life story of a soldier who was injured in Germany during World War II and sent to England to recuperate. There he met and married a nurse who took care of him while he was in the hospital and the two of them eventually moved to Florida where flare-ups from his old wounds would periodically put the man back in the hospital. While confined to a hospital bed, his wife would see another man. Departing from the tragic real-life ending of murder-suicide, in the song Tillis nonetheless refers to it with the lyrics "if I could move I'd get my gun and put her in the ground."
The song was a major hit for Kenny Rogers and The First Edition reaching #1 in Britain and #6 on the Hot 100 in the United States as well as #39 on the country western charts of the time. Worldwide, the single sold over 7 million copies for the band and remains one of the best known songs on the effects of the ravages of war on its returning soldiers.