Dear John letter
A Dear John letter is a letter written to a soldier overseas by his wife or romantic partner to inform him their relationship is over because she has found another lover.
Origin and etymology
While the exact origins of the phrase are unknown, it is commonly believed to have been coined by Americans during World War II. Large numbers of American troops were stationed overseas for many months or years, and as time passed many of their wives or girlfriends decided to begin a relationship with a new man rather than to wait for the original one to return.
As letters to servicemen from wives or girlfriends back home would typically contain affectionate language (such as "Dear Johnny", "My dearest John", or simply "Darling"), a serviceman receiving a note beginning with a curt "Dear John" would instantly be aware of the letter's purpose.
"Dear John," the letter began. "I have found someone else whom I think the world of. I think the only way out is for us to get a divorce," it said. They usually began like that, those letters that told of infidelity on the part of the wives of servicemen... The men called them "Dear Johns".
A Dear Jane letter is a contemporary version of a Dear John letter addressed to a female lover.
This term is also used to describe letters written in the context of employment, either to inform an applicant that they had not been selected for a job, why employees had been separated from work, or from an employee to their employer upon the employee quitting.
In popular culture
In country music, the concept of the "Dear John" letter was the subject of at least three recordings. Hank Williams recorded "Dear John", which was released as the B-side of "Cold, Cold Heart" in 1951. The second came in 1953, when then-unknown singers Jean Shepard and Ferlin Husky recorded a composition called "A Dear John Letter". Shepard sang the refrain while Husky recited his part -- playing the part of John, a soldier stationed overseas during a conflict, possibly the then-ongoing Korean War. The young soldier excitedly receives and opens a letter from his girlfriend, but then finds heartbreak: She is breaking off the relationship and is marrying John's brother, Don. The song was a No. 1 country and No. 4 pop hit in the late summer of 1953. Several other artists and duet pairings recorded the song in the late 1960s and early 1970s, with the Vietnam War ongoing; meanwhile, Shepard and Husky recorded a follow-up later in 1953 called "Forgive Me, John," which also became a best-selling country hit.
An old joke goes that an Army private tells his bunkmate that his girl just wrote him a Dear John letter. The bunkmate asks him, "Well, what did she say?" The private replies, "That's all she wrote," which has become a cultural joke in itself.
The Jim Croce song "Operator" was inspired during Croce's military service, where he saw lines of soldiers waiting to use the outdoor phone on base, many of them calling their wife or girlfriend to see if their Dear John letter was true. 
In the R&B song "grapvyne" by Brownstone they say "Now here's a Dear John letter that I've written just for you" Implying that she is leaving her lover.
In the movie Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb, "Dear John" is the name written on one of the two nuclear bombs (the other one is named "Hi there") carried by the B-52 airplane piloted by Major T. J. "King" Kong.
"Dear Johns and alcohol" is the first line of the Issues song "Rank Rider" which talks of a soldier in a relationship with someone taking advantage of their significant other's absence.
- Quinion, Michael (13 Dec 2003). "Dear John letter". World Wide Words. Retrieved 7 January 2014.
- Hollywood Girls Gain Weight on Tour of Africa St. Petersburg Times, March 21, 1944.
- Gross, Chuck (2006). Rattler One-Seven: A Vietnam Helicopter Pilot's War Story. University of North Texas Press. p. 173.
- Susan M. Heathfield. "Communicating with Candidates for Your Job". About.com Money.
- "The 'Dear John' letter to candidates: Follow this protocol".
- "How to write a "Dear John" letter".
- DDM (1 October 2013). "Obama Sends 'Dear John' Letter To Federal Workers: It's Not You, It's Congress".
- "Jim Croce".