What are your views on the construction of large dams of interstate significance?

What are your ​views on the ​construction of ​large dams of ​interstate ​significance if ​of at least of ​one side (state)​ against it (​for example ​ROGUN damb in ​Tajikistan) and ​what are the ​solutions to ​achieve common ​interests is ​not to the ​detriment of ​others?
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