Byun Hee-soo

Byun Hui-su was a South Korean soldier. Known as the first openly transgender soldier in Republic of Korea Army, she had risen to the rank of staff sergeant and was a tank driver before being discharged from the army in January 2020 after she underwent gender reassignment surgery in Thailand in November 2019. She had fought for the right to continue serving in the army, but was denied and discharged. The army subsequently denied her request for reinstatement in July 2020.

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