Translation of "deterrent structures" into Croatian

No one knows exactly how a war would unfold, only that the sort of “bolt from the blue” surprise attack around which all three great nuclear powers have built their deterrent structures is unlikely because of the strength of those very structures. (https://www.nytimes.com/2024/12/02/magazine/nuclear-strategy-proud-prophet.html)

Nitko ne zna točno kako bi se rat odvijao, samo da je vrsta iznenadnog napada "grom iz vedra neba" oko kojeg su sve tri nuklearne velesile izgradile svoje strukture odvraćanja malo vjerojatna zbog snage tih samih struktura.