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History The Muang Tai army was formed in 1985 , through the merger of two nationalist paramilitary groups , SUA ( Shan United Army ) and the Moh Heng-faction of SURA Shan United Revolutionary Army .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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