[7][9][10] Mya Tun Oo's rapid rise through the armed forces was noted by political observers, known for his professional record in both field combat and staff roles.

[11][12][13] By 2010, he was promoted to the rank of brigadier-general, serving as the rector of the Defence Services Academy, his alma mater.

[22][23] On the following day (2 February 2021), he was appointed a member of the State Administration Council by the Commander-in-Chief of Defence Services.

[3][24][25] The U.S. Department of the Treasury has imposed sanctions on Mya Tun Oo since 11 February 2021, pursuant to Executive Order 14014, in response to the Burmese military's coup against the democratically elected civilian government of Burma.

[33][34][35] HM Treasury and the Foreign, Commonwealth and Development Office of United Kingdom have also imposed sanctions on him since 18 February 2021, for his responsibility for serious human rights violations in Burma.