The Lost Children of Terra

The world has lost 75% of its land to a different version of humans who have evolved due to going into space. these advanced humans called themselves the seris. they can live up to 300 years and barely look like they age. plus they have enhanced strength, speed, and technology. Plus the royal family has supernatural gifts. The human race was pushed back into a corner as these advanced species of humans fought for the earth and its plentiful resources. Even though the human race is weak they fought the seris to a standstill, which soon leads to a treaty between what was left of many nations governments. those humans that are still alive will stay on the twenty-five percent of the land they have left, and if any human leave they are subject to seris law. some humans stayed outside the fence humanity put up. These humans were outraged at their government for giving up. as the years passed anger turned to malice and malice turned to revolt.
The Moon resistance pushed the already stressed small nations to fight another war. With barely enough soldiers to keep up the ranks in the military the remaining political powers enacted the lost children of terra Act. since there was a surplus of orphans and not enough caregivers, these orphans would be given to military schools and trained to be soldiers for the nations. this caused their military might to rise and fend off any attacks by the revolutionaries. This is where the story starts.