The sovereign government of Mars, a parliamentary republic built around the century-long terraforming project that defines Martian identity. The MCR fields the most technologically advanced military in the system through the MCRN (Martian Congressional Republic Navy). Martian culture values discipline, sacrifice, and long-term thinking - citizens live underground and work toward a surface their grandchildren's grandchildren might walk on. This shared purpose collapses after the ring gates open, offering hundreds of habitable worlds without the need for terraforming. The resulting crisis of meaning drives mass emigration, military desertion, and the eventual rise of the Laconian breakaway state built from stolen Martian ships and protomolecule technology.