Tannu Tuva (1921-1926)
On 11 October 1944, the Soviet Union annexed its satellite state of Tannu Tuva (officially known as the Tuvan People’s Republic by this point). Its final President, Khertek Anchimaa-Toka, held the highly specific distinction of being the first modern non-hereditary female head of state.
By the time it was annexed, Tuva had a boring run-of-the-mill communist flag: red with a yellow acronym in the corner. But in the 1920s it used a more elegant Dharmacakra symbol. The blue and gold colours are now featured on the flag and coat of arms of Tuva.