The World of Crescent Moon Squad currently contains information about three planets.

Earth, the home planet of Crescent Moon Squad. Discovery of new inhabitable planets has turned Earth into a sparsely populated world. This makes it perfect for undercover military operations.
Arkhen, a thriving paradise world which draws many galactic tourists every year. It is also the home of the radical mercenary organization Apocalypse.
Unknown #87, the home planet of the Skaarj. Much about this planet, including its location, is not known to outsiders.

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