To pre-emptively give poor Gokbay acronym context, I figured I'd get that out the way early here! The FVU is the Free Visionary Union, a two-planet defensive pact/alliance between Shaja and Novgoroth crafted during the instability of the Interregnum. The flag incorporates colours from both of their flags, and suggests the horizontal stripes on both of their flags whilst still crafting distinct imagery trying to play off the idea of an eye and also a protective hexagon. ISA is the Interstellar Space Agency, the replacement humanitarian+diplomatic+peacekeeping organisation for UNSA that emerged in the mid-26th century. It utilises the same base colour as the old UNSA flags but rather than borrowing UN imagery tries to go for abstract representation of diversity and strength in numbers. As with UNSA there are many variants of this flag for different branches/organisations. IOAM was the Imperium of All Mankind, a neo-imperialist entity which took over the planet Alpha Centauri by coup in the early 25th century, and came the closest of any one power to militarily occupying the solar system via an overengineered monstrosity of a battleship. The flag's imagery deliberately invokes that of Imperial Japan, both the imperial chrysanthemum and the radiant sun, with a floral/solar element with 18 rays/petals (2 more than the number of petals on the Imperial chrysanthemum of the Japanese Emperor). PDTO is the Purple Dragon Treaty Organisation, an alliance similar to that of the FVU in that it was forged during the Interregnum between multiple planets for security. This flag was drawn up rather more hastily than that of the FVU, so doesn't have anything cool like an actual dragon on it, but the three bars represent the planets of Chang'an, Mali, and the Federal Moons of Anzhu. It's got a good representation of the fact that a number of these flags across all of the different graphics are historical, or were temporarily used. I have been tempted to do one which has the history of a single entity's flags across the 21st/22nd through to the 28th century.