Final answer:
Ender Wiggin's decision to go back to battle in 'Ender's Game' is influenced by various factors including messages from his sister and brother, the ongoing threat of the Formics, and a new friendship.
Step-by-step explanation:
Ender Wiggin's decision to go back to battle in the novel 'Ender's Game' is influenced by multiple factors:
- A message from Ender's sister, Valentine, encourages him to continue fighting.
- The sudden return of Ender's brother, Peter, motivates him to stay.
- The knowledge that the threat of the Formics is not yet eliminated and that Ender is humanity's best hope pushes him to continue.
- A newfound friendship with a fellow student, Bean, convinces him to keep going.