6) All that said, some sort of border scuffle blowing up into a punitive expedition is IMO juuuuust barely on the bleeding edge of plausibility. But a war of annexation is right out. Just for starters, the Serbs would go absolutely nuts, since an Albania in Yugoslavia would be an implicit threat to Kosovo.
There are other problems, but those will do for starters.
Doug M.
Indeed. Yugoslavia had enough troubles with Kosovaris as it was, no need to add more of their bretheren to the fold.