The Hollow Moon was largely controlled by an Aleena gangster named Sollima. It hosted all type of gambling—from sabacc tables to the gladiator rings. The New Order wanted a piece of it for years but did not want to start a large-scale conflict in Hutt Space. So they first stole Sollima's accounting droid to used information inside him against Sollima and later ordered smugglers Han Solo and Billal Batross to infiltrate the Moon and disable its security network in exchange for release from captivity. Once they completed the task, the Galactic Empire took control over the world.