We'll Meet Again--Vera Lynn (1953)
The original version is much more evocative of the time, with only the lonely, haunting accompaniment of the Hammond organ, giving a poignancy to the parting of troops going off to fight a war many of them would never return from and no one perhaps believing it would last six long years and with horrors unimaginable even compared to the previous war.
The 1953 version, whilst nice, has a sumptuous orchestral backing, symbolic of men and women 15 years older who could look back with satisfaction on their youthful trials and a degree of nostalgia.