Time flows like a river, history rolls forward.
Five hundred years ago, between the years 196 and 216 of the Federal Calendar, was the era of fiercest conflict among Terra Residents and Interspace Residents since the 'Unified War'.
The 'Century Rebellion', occurring in the last decade of the second century, lasted a considerable amount of time. Combined with numerous wars, including the 'Frost Campaign', it was collectively referred to in history as the 'Twenty-Year War'.
Beginning with the 'Valentine Conflict' (Terra Valentine's Day is December 12th), friction arose during military exercises between the Terra Federation, the Lunar City Alliance, and the Cosmic City-State League, swiftly escalating into conflict and even war. Within just a year, the three parties directly transitioned into full-scale war, each blaming the other as the cause of the conflict.
