Reverse of the badge is plain.
Flag of the Mengjiang United Autonomous Government that was introduced in 1939.
靖 - [to] Pacify/Appease; Tranquil; Quiet
郷 - Country
inner mongolia badge
japanese puppet state badge
mengjiang united autonomous government badge
蒙古連合自治政府バッジ
蒙古連合自治政府章
蒙古連合自治政府靖郷バッジ
蒙古連合自治政府靖郷章
靖郷バッジ
靖郷章
Height 36.7 mm.
Width 31.3 mm.
Weight 7.5g.
Only
靖郷
on obverse.
It could be read as Jìng County/District.
Another possibility 靖郷 stands for the 靖郷隊 - Yasushigō Corps.