Ace Combat Zero: The Belkan War is the sixth entry in the Ace Combat series for PlayStation 2. Set during the Belkan War, the game follows a mercenary pilot known as Cipher. Players engage in various missions, including aerial combat and escort tasks. The narrative unfolds a decade later through interviews with pilots, revealing the war's hidden truths.
The sixth installment in the Ace Combat series explores the Belkan War, a devastating conflict alluded to in Ace Combat 5. In the game's main story mode, the player takes control of a mercenary pilot, callsign `Cipher`, taking part in the Belkan War by advancing through aerial combat, escort, assault, and defense missions. The story is told through the eyes of a reporter, 10 years after the conflict, uncovering secrets of the war by interviewing some of the pilots the player shoots down.