Republic of Gamon

The Republic of Gamon is a fictional Southeast Asian country in the manga Kamen Rider Spirits. Its probable location is somewhat below Vietnam and Cambodia supposedly near the location of the modern Mekong River Delta part of Vietnam.

Kamen Rider Spirits
In the past the country was being forced into merging with its neighboring countries. A war for its independence soon started through the leadership of two commanders. Known to their enemies as The Demon of Power General Damon and The Demon of Intelligence Colonel Gamon. But before the country's independence was achieved, they lost both heroes, Gamon were struck to death by the enemies and Damon disappeared afterwards (which was later revealed to have orchestrated the death of the former). In memory of the great general's death, the country was named after him.