What is the exact setting for among the enemy?

"Among the Enemy" by Margaret Peterson Haddix is set in a dystopian world where society is divided between the privileged and the oppressed. The story primarily takes place in a militarized environment controlled by the government, specifically within the confines of a secretive enemy camp. The protagonist, a boy named Matthias, navigates this oppressive setting while grappling with themes of identity, loyalty, and the struggle for freedom. The atmosphere is tense and filled with danger, reflecting the broader conflicts of the society in which the characters live.