Perpetually swathed in its trademark smog storms, Planet Leeds is a vast metropolis of manufacturing facilities, smelters, processing plants and environmentally sealed apartment blocks. Centuries of industrial abuse aided and abetted by morally corrupt corporations, lack of official oversight and severe overpopulation led to the planet being the symbol of everything the Green Front, and their unlawful counterpart the Gaians, fight against.

The Leeds system was quickly recognized as the most resource rich system under Bretonian control during the House's formative years. Many new companies, including Bretonia Mining and Manufacturing, were given near carte blanche to develop the system as they saw fit, and the planet’s initial population was bolstered by forced relocation of colonists from New London to Planet Leeds by order of Prince Harry XII in 95 AS. The planetary population has since climbed steadily, and the last census of the Leeds system in 810 AS listed the planet as having over 18.6 billion inhabitants, making it one of the most heavily populated planets in the Sirius sector. This number has since been decimated by repeated wars and gallic bombardment.

When it became clear that the Gallic Royal Navy would breach Leeds and that a siege was almost certain, the ground forces alongside the population began to fortify and construct whatever defenses they could to resist orbital bombardment. Utilizing the pre-existing underground cities, accesses and large subterranean industrial complexes, much of the population was evacuated to bunker cities.

Over 90 million soldiers were deployed by the Gallic Royal Navy to occupy the planet, and the fighting was fierce, with the bunker cities able to access many of the ‘occupied’ areas of the planet through accesses to the population that remained above. After months of fierce fighting in the warrens of Leeds, the Gallic Royal Navy began tactically bombarding habitation centers from orbit. An estimated 1.5 billion died in the initial months of the Gallic Royal Navy bombardment, leaving no doubt that the Gallic Royal Navy had given up hopes of occupying the planet.

In the years that followed the occupation, brutal warfare was the norm conducted by the Gallic Royal Navy, sparing no one to the horrors of war. Cities were leveled by artillery, civilians were shot on sight or worse. Streets filled with the lumped bodies of children, old and young adults, became a common sight, where the dirt became oily with human fat, burnt in pyres that dotted the landscape of the mega-cities in control of Gallia. But still, the Gallic Royal Navy was unable to dislodge the resisting population from their underground complexes were the fight was thickest.

With the advent of the invasion of New London, the Royal Navy decided to increase the number of soldiers and their supporting hardware in the planet as a two fold maneuver. Have a close base of deployment for the millions of soldiers needed in the future and use Leeds as an experience gaining operation to prepare them for the planetary invasion of New London. With the heavily increased numbers, a systematic culling initiated. Sightings of whole tunnels clogged with bodies, the use of innovative tactics as flooding the tunnels with radioactive material and other atrocities have become commonplace, as the Gallic Royal Navy have declared the entire planet a free fire zone.