Vanguard Corps

The is a military organization that appears in the draft story Attack on Titan Volume 0 by Hajime Isayama.

Story
Murakumo returns the city along with the rest of the Vanguard Corps. They are scarce on numbers and do not come back with new results. When the city is under attack, the Vanguard Corps are hesitant to subdue the Titan. In the end, the Titan is killed by Murakumo.