As Imperial Japan defends the front lines of the Far East, it faces difficulties in the development of a next-generation TSF. In 1998, BETA make landfall on the Empire of Japan's Kyushu Prefecture, and in short order the Imperial Capital of Kyoto is lost despite a desperate defense.įast-forward to 2001. For the next 30 years, mankind finds itself bogged down in an endless war against the BETA without any hope of victory. However, all these efforts could do was stall the BETA temporarily, and mankind is forced to abandon continental Eurasia.
Facing an enormous, unstoppable horde of enemy forces with weapons making aircraft almost useless, mankind developed large humanoid fighting machines called Tactical Surface Fighters and deployed them to defensive lines throughout the world. In 1973, an invasion of aliens known as BETA upon Earth is driving human civilization into near collapse.