Invasion of Hutt Space

In around 1040 BBY, Mand'alor Aga Awaud led three failed campaigns into Hutt Space. 66

First campaign
The Mandalorians managed to defeat Hutt warships in the Arrochar system following a lengthy space battle, however were forced to retreat after a failed attempt to land infantry on Arrochar's surface. While some infantry did manage to lead an assault on the surface, they were wiped out following a month-long engagement with the Hutts' Weequay slave-warriors that resulted in no territorial gains.

Second campaign
Nearly a month after their defeat on Arrochar, the Mandalorians returned to Hutt Space to invade Kor Bareesh. With an army numbering tens of thousands (mostly comprising warriors from House Bralor), the Mandalorians managed to nearly secure the entire planet until a Hutt fleet arrived to reinforce the defending forces, ultimately defeating the Mandalorians both on the ground and in space. With over 100,000 casualties on both sides in the span of only one month, this battle saw the most casualties of Awaud's invasions. It was rumored that a nuclear weapon may have even been employed by the Mandalorians on Kor Bareesh's capital city, which may have accounted for the majority of the battle's casualties. Had the Hutt fleet not arrived in time, Kor Bareesh would have been successfully conquered by the invaders.

A century later, a supervolcano on the planet rendered Kor Bareesh mostly uninhabitable; the volcano's instability may have been an indirect result of the nuclear blast.

Third campaign
Over three years later, Aga Awaud made one last attempt to defeat the Hutts at Nar Kreeta. After overcoming a large Hutt fleet in the system, he landed a force of over 350,000 warriors of various clans on the surface and within weeks captured a majority of Nar Kreeta's major population centers. A nuclear device was also planned to be used on Nar Kreeta, but detonated on its transport ship as it entered the system, which actually managed to work in the Mandalorians' favor as the Hutt warships were not suited withstand high radiation, resulting in system failure. This battle would last over a year, with Hutt clans throwing horde after horde of slave-warriors and mercenaries at the invaders, and even bombarding Mandalorian outposts from orbit. With less than 100,000 warriors left under his command, the rest having been killed or captured, Awaud finally decided that the cost was too high and brought what remained of his army back to the Mandalore sector. As was the case with Kor Bareesh, Nar Kreeta would have been conquered had it not been for overwhelming reinforcements.

Skirmishes
Following Awaud's defeats, many Mandalorian warlords took it upon themselves to avenge the lost warriors and took their own warships to Hutt Space, where they carried out numerous pirate raids on Hutt merchant vessels for following years. Some of these warlords had other ambitions, however, and the Hutts managed to buy them out to attack other Mandalorian raiders. This infighting, a result of greed, prevented the Mandalorians from doing any further damage; these would be the last battles of the campaigns.

While these raids took place, Awaud was back in the Mandalore sector fighting rebellious clans.

Aftermath
Although these campaigns were ultimately met with failure, Awaud still received praise from his people for taking on a foe whose forces outnumbered his by possibly millions. Many Mandalorians also stayed behind in Hutt Space to found enclaves; some of these enclaves would continue to oppose the Hutts for centuries, while others would offer their services to them as mercenaries. Awaud's campaigns later became the subject of various legends on some Hutt worlds. The Weequay even believed that the Mandalorian invasions were a punishment from their gods, and future generations of Weequay taught their descendants that the Mandalorians were a tool used by the gods to punish whoever disobeyed them.