Is Enders game an allegory?

Could you elaborate on why you believe "Ender's Game" by Orson Scott Card may be an allegory? Are there specific themes, characters, or plot elements that seem to parallel real-world issues or concepts? As a work of science fiction, does it offer commentary or criticism on aspects of society, politics, or human nature? Are there any historical or contemporary events that the novel seems to mirror or draw inspiration from? Understanding these aspects could help us delve deeper into the question of whether "Ender's Game" is indeed an allegory.