Erwin Smith is a fictional character from the popular anime and manga series Attack on Titan. He serves as the commander of the Survey Corps, a military organization dedicated to fighting against giant humanoid creatures known as Titans. Erwin is known for his strategic mind, leadership skills, and unwavering determination to uncover the truth about the world. Throughout the series, Erwin plays a crucial role in various battles and missions, often putting the safety of his comrades above his own. His character embodies themes of sacrifice and the pursuit of knowledge, making him a pivotal figure in the fight for humanity's survival against the Titans.