A significant conflict unfolded at the Black Bantha Nebula in 27 ABY, during the period known as the Yuuzhan Vong War. After the Yuuzhan Vong seized control of Reecee, Han and Leia Organa Solo conducted reconnaissance of the Black Bantha, a perilous nebula impervious to sensors. This nebula was strategically positioned on the hyperroute linking Reecee and Coruscant. While there, they found that the Yuuzhan Vong fleet from Reecee had relocated to the nebula, where it was being reinforced by hundreds of additional Yuuzhan Vong vessels arriving from across the galaxy, all in preparation for an assault on Coruscant. They promptly relayed this information to New Republic Fleet Command, prompting Supreme Commander Sien Sovv to rapidly mobilize a fleet of 900 ships for an immediate counter-attack. However, the Vong's forces vastly outnumbered Sovv's and possessed superior tactical coordination.
The crew aboard the Millennium Falcon made a crucial discovery: a substantial portion of the Vong fleet was low on fuel and supplies, essentially serving as a non-threatening diversion. This intelligence enabled Sovv to disregard that segment of the enemy force and concentrate his efforts on the primary dangers. Despite the loss of a quarter of the New Republic fleet, the battle concluded with the destruction or dispersal of the Vong ships. Moreover, a contingent of Jedi led by Luke Skywalker successfully captured the fleet's vital yammosk during what became known as the Yammosk Action.