During the time of the Separatist Crisis, a significant division arose on the moon of Antar 4. This split occurred between those who remained loyal to the pro-Galactic Republic faction and those who desired allegiance with the Confederacy of Independent Systems, including the Gotal Assembly for Separation and its more extreme offshoot, the Roshu Sune. Even with a lengthy terrorist bombing campaign initiated by the Roshu Sune, the loyalists managed to maintain their authority until the First Battle of Geonosis. This battle marked the beginning of the Clone Wars, following which the Separatists gained control of the moon. Separatist forces held the moon until the Clone Wars concluded. Following this, the Galactic Empire—the entity the Republic became at the war's end—conducted widespread arrests and executions on Antar 4. This incident became infamous as the Antar Atrocity.