Robot Debris

Upon closer examination, the smashed droids found on the surface of … appear to originate from two distinct cultures. Technologically the droids must have been evenly matched when they were still functional, but there are many subtle differences that hint at different design origins.

… does not seem to have simply been a dumping ground for broken droids - it may have served as the actual battlefield where they were destroyed. The many layers of debris suggest a series of very intense battles waged intermittently across the better part of two centuries.

Exactly why two interstellar powers would commit such vast resources towards waging a massive ground war on a small and unremarkable asteroid remains an unanswered question.

Our archaeologists have learned that after a long and bitter war, the two empires inhabiting this corner of the galaxy some 200,000 years ago signed a treaty compelling them to settle all future disputes with arranged and highly regulated combat engagements between robotic armies.

… was chosen as the site of these battles. The treaty appears to have been upheld for nearly two centuries, preventing the outbreak of armed hostilities on numerous occasions, until one of the empires was caught cheating.