This is a list of fictional characters of the anime Attack on Titan
The members of the 104th Training Corps (第104期訓練兵団 Dai-hyakuyon-ki Kunren Heidan) graduating class. In the manga, the top ten cadets were listed by their individual ranks,[ch. 2] but in the anime, the top ten are recognized as a group. Along with Eren, Mikasa, and Armin, there are the following members:
The Military is divided into three divisions: the Garrison Regiment, the Survey Corps, and the Military Police Brigade. It is commanded by Darius Zackly. Applicants into the Military are first required to enter the Training Corps overseen by Keith Shadis, after which they are allowed to join one of the three divisions.
The Garrison Regiment (駐屯兵団 Chūton Heidan) are the soldiers that protect the towns and reinforce the Walls. They are the first line of defense against the Titans maintaining a defensive stance. They are the largest force in the military due to the small number of members in the Military Police Brigade and the high death rate of the Survey Corps.
The Survey Corps (調査兵団 Chōsa Heidan, alt. "Scout Regiment") is composed of expeditionary soldiers that venture outside the Walls. Their goal is to discover more about the origins and source of the Titans, their motives, and weaknesses; ultimately how to fight and defeat them. They are an integral component in the military's campaign to recapture Wall Maria. Due to this, the division suffers from a much larger casualty rate than the Military police or the Garrison Regiment.
The Survey Corps Special Operations Squad (調査兵団特別作戦班 Chōsa Heidan Tokubetsu Sakusen-han) is a squad of elite soldiers hand-picked by Levi.
The Military Police Brigade (憲兵団 Kenpeidan) is composed of soldiers assigned to watch over the Training corps, supervise the Garrison Regiment, control the fire departments, and arrest and detain political criminals and offenders. The top ten of each training class are eligible to join, although some experienced members can transfer from the Garrison. As their tasks mainly involve administration and behind the scenes work, they do not experience front-line combat with Titans and often reside in the safety of the innermost wall.[vol. 8]