Ace Combat is an arcae style flight/combat simulation video game series published by the Japanese company Bandai Namco Games. Although set in fictional countries, many details are similar to real-life wars, such as the Persian Gulf War, the Cold War, and World War II, and feature actual present day aircraft, but also fictional ones, especially flying fortresses. The first three titles were released on Sony's PlayStation platform, while three subsequent titles were released on the PlayStation 2 (Ace Combat 4, Ace Combat 5 and Ace Combat Zero: The Belkan War). One title, Ace Combat X was released on the PlayStation Portable (PSP) platform and another title, Ace Combat 6 has been recently released on Microsoft's Xbox 360 platform.