Help me come up with a name for a country in my novel?

the book is about how everyone on earth disappeared except for people 20 and under in the Western United States. they are ruled by a man named Dexter and his government of cruel teens from rich families. i need a name for the country. i thought of "The New United States of America" or "The Youthful States of America" but both sound lame. help me out? thanks