Claude Duvalier

Fearless candor defines Claude. Convinced that nothing matters more than wiping out the Titans, he openly scorns the Military Police Brigade for its corruption and casual abuses of power, and he accepts that his blunt writing could cost him his life. Promotion holds no appeal for him; being shipped to the deadliest front lines would suit him fine.

In his view, distinctions of rank and sex concern only the sheltered people living behind the Walls. He pictures the Survey Corps as arrows loosed on humanity's behalf and insists that no soldier's death is wasted, since every loss binds people together and hands hard-won knowledge to the generations that follow. He never doubts that the Corps will one day defeat the Titans.

Claude spends a long stretch of his career inside the Survey Corps, absorbing its tactics, its structure, and the wider history of the military before retiring into a teaching post with the Training Corps.

After Wall Maria falls and the botched attempt to win it back leaves the military drained of veterans and supplies, he drafts his so-called white paper. The document gathers everything his battles against the Titans taught him and aims to steer capable trainees toward the Survey Corps. He stresses that it carries no official standing and tells readers to burn it once they finish.

Years of field service give Claude an encyclopedic command of how all three military branches fight, organize, and developed over time. That expertise earns him his appointment as a Training Corps instructor, where he passes his Titan-killing knowledge on to new soldiers.