Ender Wiggin is a fictional character and the protagonist of the science fiction novel series "Ender's Game," written by Orson Scott Card. He is a young boy selected to attend a military school in space, where he is trained to become a commander in a war against an alien species known as the Formics. Ender is known for his exceptional intelligence, strategic thinking, and leadership skills. Throughout the series, Ender faces numerous challenges and moral dilemmas as he navigates the pressures of training and the expectations placed upon him. His journey explores themes of isolation, empathy, and the consequences of war, making him a complex and relatable character in the realm of science fiction.