This is the 16498th most frequent Turkish word.
yaşanmasın
"Let it not be experienced" or "Let it not happen."
The word 'yaşanmasın' here is used in an imperative sense to express a wish or desire for wars not to occur again.
Savaşlar bir daha yaşanmasın.
Wars should not happen again.
In this case, 'yaşanmasın' is used in a clause indicating purpose or reason, demonstrating preventive action.
Benzer bir trajedi yaşanmasın diye önlemler alındı.
Measures were taken to prevent a similar tragedy from happening.
Here, 'yaşanmasın' expresses a negative desire or wish to avoid repetition of past bad events.