Calling Me Home (1936)
This sounds like an answer to Old Fashioned Lady by Vaughn De Leath (1929).
Not sure if you got the reference. In Pink Floyd’s The Wall, the pain at the core of the protagonist is the fact that his father never came back from the war, so he sees “We’ll Meet Again” as a broken promise.
There’s a very short song, “Vera,” which goes:
Does anyone here remember Vera Lynn
How she said we’d meet again some sunny day?
Vera, Vera, what has become of you?
Does anybody else in here feel the way I do?