I can only see a list of suffering people without expected outcome: North Korea, Venezuela, Iran, URSS, Cuba, etc.

(Genuine question to History geeks) Do we have an exemple of mass sanctions on a country that worked? Why are we repeating strategies that do not seem to work?

Theses sanctions seems to be designed to only short term please the people/voters/journalists of the sanctioning countries but are terrible to the sanctioned country/people long term without solving anything.