The wording here roughly translates as recognition of 45 years of successful history with the middle portion saying something about the effectiveness of local security bases. The wording at the bottom tells us this is from the Democratic Republic of Vietnam and, given its date of 1966, this is a very political statement of allegiance with China in the midsts of the Vietnam War. From 1965, China escalated its provision of military supplies to North Vietnam as well as the supply of troops. By 1967, there were 170,000 Chinese troops operating in Vietnam.
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