Young Justice: Invasion
War
S2 E15:
At the Justice League's trial on Rimbor, Vandal Savage manipulates Mongul into taking action against the Reach. The Justice League and Nightwing learn that something is fast approaching the Earth. As Green Beetle informs them that it is a weaponized, moon-sized satellite known as the War World which is captained by the former dictator Mongul, the Reach make contact with Mongul to persuade him to turn around.