Battle of Aargonar (Galactic Civil War)

The Battle of Aargonar took place early in the Galactic Civil War, almost simultaneously with the Battle of Yavin.

The battle
The Rebel base on the third moon of Aargonar was surprised by the appearance of three Star Destroyers on the outskirts of the system. The Rebels went on alert and began loading transports to make an escape from their base. X-wing and Y-wing squadrons were sent to cover the transports' jump to hyperspace. Meanwhile, stormtroopers were landed on the moon, tasked with the capture of Rebel officers and leaders. The Midnight Star escaped the system, carrying Commander Hamelin, Gruu Dunrik, and Cala Worner.

Aftermath
Though the base was lost, many of the Rebel forces escaped the system and key officers and leaders were spirited away. The Empire had gained only a limited victory.

Source

 * Rebellion Era Sourcebook