Wroclaw

Wroclaw is the first planet orbiting the star Meschova. It is located close to the Savas-Kinnear Magellanic Cloud, approximately 39 light-years away from Earth. Wroclaw has two natural satellites, Kuhn and Kohn.

The planet has an abundant amount of granite and massive quarries are built around the settlements, which serve as the colony's primary export.

Wroclaw was the target of a Covenant invasion in 2547, eventually falling and being classed by the Covenant in a week-long battle. The engagement was costly on both sides, however with the system under Covenant control, the UNSC's other nearby Inner Colonies were vulnerable due to the nearby Kaiser Passage that could allow ships to "flank" a less protected front.

Colonization
Wroclaw was colonized in the first waves of extrasolar expansion by humanity in the late 2300s. Granite and mining became the planet's primary industries with quarries and mines running thousands of meters beneath the surface. The majority of settlements were within a five hundred mile radius and even up to the beginning of the war, much of the planet remained unexplored.

Human-Covenant War
With the outbreak of the war when in contact with the Covenant Empire, Wroclaw's defenses were strengthened and the planet partook in annual colony-wide evacuation drills

The Covenant discovered Wroclaw's location after attempting to find the Kaiser Passage, which was a smaller route around the Savas-Kinnear cloud.