The ambush on Red Squadron was mentioned in canon through Star Wars Helmet Collection 3. The battle originated in Star Wars Legends as an engagement in the Derra system before the Battle of Hoth. The concept of a pre-Hoth ambush at Derra would be introduced into canon in Star Wars: Battles that Changed the Galaxy. No source has yet to link the battles mentioned in Star Wars Helmet Collection 3 and Star Wars: Battles that Changed the Galaxy, as they were in Legends.
The ambush on Red Squadron was mentioned in canon through Star Wars Helmet Collection 3. The battle originated in Star Wars Legends as an engagement in the Derra system before the Battle of Hoth. The concept of a pre-Hoth ambush at Derra would be introduced into canon in Star Wars: Battles that Changed the Galaxy. No source has yet to link the battles mentioned in Star Wars Helmet Collection 3 and Star Wars: Battles that Changed the Galaxy, as they were in Legends.