The 212th were one of the many overworked Battalions during the Clone Wars. They were attached to the Open Circle Fleet, and commanded by Jedi General Obi-Wan Kenobi and Clone Commander Cody. Their final battle with Kenobi was on Utapau, where Cody was issued Order 66 shortly after Obi-Wan had killed General Grievous. Obi-Wan charged up a wall riding a giant lizard, and was shot down by an AT-TE cannon under Cody's command. There was no trace of Kenobi's body, so of course they assumed he was dead.