This is a (prototype) flag for the Union State of Eurasia, a fictional nation/supranational entity/superpower thing. The Russian name is formally Союзное Государство Евразийского Содружества (Union State of the Eurasian Commonwealth). Check my work please, Russian speakers.
Despite the color scheme, the USE is not Communist. Those are laurel leaves, by the way. Bay laurel, if you want to know.
USE is basically an evolution of the Commonwealth of Independent States on the model of the Union State of Russia and Belarus with an EU-like bloc economy system... an expanded EVRASEC (Eurasian Economic Community). Conceived as a counter to rapidly centralizing Europe (the EF) and the People's Republic of China, the framework for USE was laid by Russian president and siloviki cabal strongman Tzvetan Todorovich Nikodimov. USE has thirteen member states: all ten members of the CIS, Ukraine, South Ossetia, Abkhazia, and Georgia, which was presumably 'coerced' back into membership. The effective leader of the USE is the Executive Branch Secretary.
The CIS Collective Security Treaty Organisation briefly deployed its peacekeeping forces under the USE banner during the Azerbaijani Civil War in 2017, when a combined Russian-Armenian task force conducted counterinsurgency operations against the radical Azerbaijan National Socialist Front (AMSC) and its Sayiqliq Komitesi militia. Unlike the European Federation, USE member nations retain their respective militaries, albeit with an obligation to dedicate portions of their active armed forces to a centralized Collective Security Force under the Russian Genshtab.
Still a work in progress. Input please.