Identification Flag Thai Army Battalion (Development)
Own work; http://www.army302.engineer302.com/2018/01/15/%E0%B9%80%E0%B8%A1%E0%B8%B7%E0%B9%88%E0%B8%AD%E0%B8%A7%E0%B8%B1%E0%B8%99%E0%B8%97%E0%B8%B5%E0%B9%88-12-%E0%B8%A1-%E0%B8%84-61-%E0%B9%80%E0%B8%A7%E0%B8%A5%E0%B8%B2-0830-%E0%B8%9E%E0%B8%B4%E0%B8%98/ and https://www.facebook.com/238194479575434/photos/a.1387060878022116/1663544183707116/?type=3
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