The hatred you are describing does not exist: it was manufactured and pushed by minorities with an agenda. How and why in the world would those mutually hating

The hatred you are describing does not exist: it was manufactured and pushed by minorities with an agenda. How and why in the world would those mutually hating ethnicities ever unite into a single country (first Kingdom of Croatians, Serbians and Slovenes after WW1, after WW2 again into Yugoslavia). As for any other interventions, why not just give each person a donation of 100k euros to see if that works? Otherwise, people under sanctions would rather you not help them. As has been indicated previously, what are the examples of where sanctions have worked?