Help with unknown bush jacket

[army historian]

Does anyone know or have an option on this short sleeve bush jacket? Thanks

[Hugh]

Button suggests socialist / Eastern bloc, but that's not much help.

[peter monahan]

Any markings on the back of the buttons? Even Roman vs Cyrillic alphabet would provide some info., as I assume there are no QM stamps inside it. Perhaps check inside the pocket flaps and inside of belt for markings as well