Was thinking of a scenario where The Balkans War has minimal NATO intervention in say 1990s- and there's so many good scenarios, scenarios in which you could make it worse with that region let alone that war but mine is quite a simple premise.
Most goes IOTL. NATO does some bombing but not to the levels it did and the Bosnian Army and HVO press onwards to Banja Luka. Operation Storm is a resounding success as in IOTL. If not all forced to the table would the Croats especially, backed up by the Bosnians stop at liberation or do they push on and take on Serbia proper? Would create a lot of interesting and fun thread scenarios that, especially with alliances in that region! I will update this in due course.