Interesting badge from 1936.
Reverse
昭和一 一. 四.二五 - April, 25, 1936
米国出征従軍老兵會 - Veterans of Foreign Wars of the United States Society
https://en.wikipedia.org/wiki/Veterans_of_Foreign_Wars
Visit of the delegation of the American Veterans of Foreign Wars to Japan in 1936 was headed by the...
19361936imperialreservistu.s.a.badge
commemorative badgeimperial military reservist association badge
japanese badge
japanese reservists association badge
u.s. veterans of foreign wars
役員招待紀念章
米国出征従軍老兵會