The Battle of Yavin was a major battle of the First War that led to the destruction of the first Death Star and Sera's first step to becoming a fully-fledged fighter pilot and occurred in the year 1453 NE. It was one of many Allied major victories. With the imminent completion of the Axis's Death Star, the Alliance anticipated a major Imperial offensive. To unify command and coordinate a defense, the Mon Calamari Star Cruiser Independence and Babylon 5 carried members of the Alliance High Command to their base on Yavin 4. Upon arrival, the Independence sent 70 squadron groups to the Yavin Base. Their numbers were augmented by veteran pilots as the Alliance gathered its resources in preparation for the coming battle.
While there was a space battlle there was also a ground battle upon the planet Yavin 4 as the Reble Alliance base there was attacked by a combine Taskforce along with members of the Axis of Empire, the base was about to be breached until the arrival of the demon of the round table (Cipher) and Renegade squadron along with reinforcements sent by the Independence.