The Red Flag Labour Unions was a

trade union A trade union (labor union in American English), often simply referred to as a union, is an organization of workers intent on "maintaining or improving the conditions of their employment", ch. I such as attaining better wages and benefits (s ...

movement in

Burma Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

, linked to the Red Flag Communist Party. On 3 July 1946, the British governor of Burma Sir Henry Knight banned the Red Flag Labour Unions and the related Red Flag Cultivators Unions.Hensengerth, Oliver.
Burmese CP in relations between China and Burma
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References

{{Trade unions in Myanmar navbox Communism in Myanmar Trade unions in Myanmar