Secilia Federation is the antagonistic force from RayStorm.
The Secilian Federation is an organization formed by a radical colonial planet that turned against the Earth's government for the purpose of independence of the colonial planetary states. It takes action to rob the forces of the Earth / Solar System Combined Fleet and seize all of the Secilia fleet.
When the Secilia system armed uprising and declared independence, other colonial planet countries feared the retaliation of the Earth and watched it, but using the forces taken by the Secilia army to unconditionally surrender the Earth, they synchronized with the Cecilia Union. Earth was isolated as a result.