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. By 2010, he was promoted to the rank of
brigadier-general, serving as the rector of the
Defence Services Academy, his alma mater. From 2011 to 2012, he served as the commander of the Eastern Central Command, which encompasses central
Shan State. In 2012, he was promoted to the rank of
major general, serving as the
army's chief of staff, chief of military security affairs, and chief of the Bureau of Special Operations 6. From 2015 to 2017, he headed the Bureau of Operations - 5, which includes the
Naypyidaw and Western Commands. On 26 August 2016, he was promoted to the rank of
general, and made the chief of general staff for the
army,
navy, and
air force. After years of speculation, he was appointed by the
Commander-in-Chief of Defence Services as the
Minister for Defence on 1 February 2021. 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. == Political career ==