Overview
Mars is the fourth terrestrial world from Helios and the second planet in Sol System colonized by humanity. Its Mars System consists of the planet itself and its two natural satellites, Phobos and Deimos. It occupies a position in the Inner Sol alongside Mercury, Venus, Earth, and Luna — but unlike all of them, it belongs to no power and flies no flag.
The planet is largely self-sustaining by the First Trilogy Era. Humanity has spent three centuries engineering it for habitation: manufacturing breathable air from the Martian soil, pumping clean water from the polar ice caps, and growing food in purpose-built greenhouse networks. Mars does not breathe Earth's air. It breathes air that its people made out of rock.
First Landing & Colonization
In 256 BSC, the NASA-SpaceX astronaut Adele Lylat became the first human being to set foot on Mars. Her transit used a Hohmann Transfer orbit and took approximately eight months. She led a team of six, with two additional supply rockets launched alongside her mission. They landed near Pavonis Mons, where her team laid the foundation for what would become Union Station and, carved into the volcanic cave system above it, Union City.
Lylat's team stayed for three months and became part of the groundbreaking permanent colonization project. That project — drawing settlers from the major Earth blocs, each arriving under their own national and corporate flags — produced the patchwork of cities that would define Martian civilization for centuries. The American bloc built at Pavonis Mons. The Soviets built at Opportunity. The People's Republic built at the Viking landing site. Over generations, those bloc affiliations became cultural identities, distinct cities with distinct laws and distinct characters, bound together only by the shared infrastructure of the planet itself.
Life Support & Infrastructure
Mars does not naturally support human life. The atmosphere is too thin, too cold, and chemically hostile. Everything required for life — air, water, warmth, food — is manufactured or extracted. That effort has been ongoing since the first permanent settlements, and by the First Trilogy Era it is mature enough to make Mars genuinely self-sustaining, at least in principle.
Polar Stations
The North and South Polar Stations are the most critical infrastructure on the planet — not any city, not any spaceport, but these two installations. They provide clean, potable water pumped from the polar ice caps; electricity; methane gas; and breathable air to every major Martian city. They are shared infrastructure owned by no single faction. They are, however, the single point of failure for the entire planet, and both sides in the Solar War know it. Control of the polar stations is control of Mars.
Air Manufacture
Breathable air on Mars is manufactured from the regolith — the Martian soil — through large-scale chemical processing. This technology, developed and refined over generations, is what makes permanent urban habitation possible without Earth-standard pressurized habitats. The cities of Mars breathe air that was extracted from rock.
Food & Water
Martian agriculture operates through specially constructed greenhouse complexes using controlled-environment growing systems. Water is delivered through the polar station pumping network. Mars is one of the few inhabited worlds in Sol System where currency still circulates regularly in daily life — barter remains common, but the economic complexity of managing city-to-city food and resource distribution makes a medium of exchange practical.
The Mars System
Under the conventions of Sol System cartography, the Mars System consists of Mars and its two natural satellites. The Intrasolar Aerotime Treaty of SY 35 grants Mars the right to regulate space within 1,000 km of its surface, a convention that becomes legally significant during the Solar War when that sovereignty is contested.
Political Character
Mars is the only planet in inner Sol that falls under no allegiance. Each city governs itself by its own laws, derived largely from the legal traditions of the majority of its original settlers. There is no planetary government in the modern sense — the Martian Free Trade Zone is an economic designation, not a state. The closest thing to a governing body is the Free Martian Council, which operates more as a coordinating body among the city-states than as a true authority.
The Free Martians themselves — descendants of the original colonists, planetside inhabitants who chose to stay — are recognized by Consortium and Confederate treaties as a free people, owing no allegiance to any nation, people, or flag but their own. This is the legal basis for Martian neutrality. It holds for over a century. The Solar War ends it.
The Solar War
When the Technocracy moves on Mars and the Consortium subsequently declares the Free Mars treaty void and enters as a "peacekeeping" force, the planet becomes a contested battleground. The First and Second Battles of Mars are fought in and around Taikograd and Union City. The Second Battle in particular is an urban siege — Technical forces cut power and oxygen to Taikograd, locking civilians in their homes, until Army of Eastern Kamijing troops halo-jump from Confederate capital ships and break the encirclement.
Between the two major battles, Free Martian militia units receive formal military training from the AEK. The founding of Freeport in SY 132 — a fully self-sufficient city built on the research of the secret Soviet Veragrad project — becomes the symbolic centre of Martian resistance and the founding site of the Spacer Protectorate.
The Siege of Mars in SY 138 lasts twelve days. Blockaded by both Consortium and Technical forces, the new Unity Government demands Martian resources as Solar trade collapses around it. The siege breaks the planet's formal resistance. Protectorate forces retreat — among them Burt Robinson, who refuses to surrender and departs with the Remus Exiles warband. Mars does not fall entirely, but it is no longer free in any meaningful political sense.