Erwin Smith was the 13th Commander of the Scout Regiment, widely respected as one of humanity’s greatest leaders. Known for his strategic brilliance, calm demeanor, and willingness to sacrifice for the future of mankind, Erwin played a pivotal role in humanity’s struggle against the Titans. Though he cared deeply for his men, he did not hesitate to use them in dangerous missions if it meant advancing humanity’s survival. His greatest legacy was the development of the Long-Distance Enemy Scouting Formation and his leadership during humanity’s boldest operations against the Titans. 

Erwin had a commanding presence, standing taller than most members of the Scouts. He was easily recognizable by his short blond hair neatly parted to the side, his icy blue eyes, and his thick, bushy eyebrows, which gave him a stern, unyielding expression. He typically wore the Scout Regiment uniform with the green cloak and a small emerald bolo tie like other high-ranking officers. After the second encounter with the Armored Titan, Erwin lost his right arm, making his determination and perseverance even more striking. 

Erwin was a complex, calculating, and determined leader. He often projected an aura of calm authority, inspiring absolute trust in his subordinates. His men admired his ability to remain rational and focused even in the direst of circumstances. Despite this, Erwin was fully aware of the weight of his choices, openly acknowledging the sacrifices he demanded of his soldiers.

His defining trait was his willingness to abandon his humanity in pursuit of his goal: the truth about the world and freedom for humanity. Like other great leaders such as Dot Pyxis and Dhalis Zachary, Erwin could order soldiers to their deaths if it meant securing a better future. Yet behind this stoic resolve, Erwin struggled deeply. His pursuit of truth was fueled by the memory of his father, whose theories about the world beyond the Walls led to his death. Erwin carried guilt for sacrificing countless lives but believed those sacrifices would be justified if humanity achieved victory.

At his core, Erwin was both selfless and selfish: selfless in his willingness to share his soldiers’ fate, but selfish in admitting his personal dream—to uncover the secrets hidden in Eren Yeager’s basement—was sometimes stronger than his desire for humanity’s victory. His final decision, however, proved his integrity, as he sacrificed his dream to lead his soldiers on one last charge against the Beast Titan.

• Childhood: Born curious and intelligent, Erwin often questioned the truth behind humanity’s history. His father shared with him the theory that the royal family had altered memories when humanity entered the Walls. When Erwin repeated this in class, it led to his father’s execution by the Military Police, an event that shaped his mistrust of the government and fueled his lifelong quest for answers.
  
  

• Cadet Years: As a cadet, Erwin was close friends with Nile Dawk. He often shared his father’s theory about the government concealing the truth, though he later stopped voicing it openly. Unlike many Scouts who fought only for humanity’s survival, Erwin realized he was also pursuing his personal dream, and he learned to mask this by becoming a leader who could inspire others.
  
  

• Rise in the Scouts: As a squad leader, Erwin created the Long-Distance Enemy Scouting Formation, a strategy designed to minimize casualties while maintaining combat effectiveness. His innovative thinking and consistent results earned him recognition, eventually leading to his promotion to Commander.
  
  

• Commander of the Scouts: Erwin orchestrated many of the regiment’s boldest plans, including the mission to capture the Female Titan and the expeditions to reclaim Wall Maria. His charisma and eloquence made him a powerful figure in military politics, swaying decisions during Eren Yeager’s trial and other key moments.
  
  

• Final Expedition: In the battle of Shiganshina, Erwin faced his greatest test. Tasked with confronting the Beast Titan, he ordered a suicidal charge that rallied his soldiers, inspiring them to fight even in the face of certain death. Though torn between his dream of reaching the basement and the survival of humanity, Erwin chose to sacrifice himself, entrusting the future to his comrades.