I had put this together literally 25 years ago from canon sources:
Yugoslavia: 2000
It lists troop locations, and some more detailed notes I devised for Yugoslavia.
Somewhere I had a scenario that had the PCs heading south from Poland getting into Gen. Mad Milo Coleman's good graces by stealing an M5 Stuart or an M8 Greyhound from the Zadar militia to present to him (there was also a Merc: 2000 version, where you stole it and a ferry to bring to a collector in Italy.)
One of the Last Submarine campaign modules described Romania.
Uncle Ted