The P-1112 Aigaion's initial construction began during the Estovakian Civil War. The technologies needed to create the Aigaion were not developed within the Federal Republic of Estovakia, but were brought in by Belkan defectors from the Belkan War. Some of these defectors were also former members of the insurgent group A World With No Boundaries. Some of this unknown technology had also became the deciding factor of the Estovakian Civil War, which ended in victory for the Eastern Faction.
The Aigaion was the first of all P-111X models to be completed and became the centerpiece of the Estovakian Aerial Fleet. After "The Generals" took power in Estovakia, the Aigaion was used to successfully push out all Emmerian Forces from the Emmerian capital city, Gracemeria. After this victory, the Aigaion and its escorts commenced multiple operations within the Republic of Emmeria in 2015 to 2016. These operations also included attacking Emmerian Troops as they passed through the Peak of Selumna, and an Emmerian assault on San Loma, with Nimbus Air Burst Cruise Missile, guided by Remote-Controlled Drones.
However, with the recovery of Cavalia Air Force Base and San Loma itself, the Emmerian Military launched an attack on the P-1112 Aigaion and its P-1113 and P-1114 escorts. With a combined force of the Emmerian Navy's 2nd Carrier Air Wing, 2nd Strike Fighter Squadron, Northern Region Air Defense 3rd Air Division, 4th Tactical Fighter Squadron and the Eastern Region Air Defense 8th Air Division's 15th and 28th Tactial Fighter Squadrons, an attack on the Heavy Command Cruiser was launched. Thanks to information gathered by multiple Emmerian operatives within the Estovakian Military, the attack was launched during a time when the Aigaion was being refueled by six KC-10 Extender Tanker Aircraft. Because these aircraft were in front of the Aigaion, the Aigaion's early warning radar was blinded.
The Emmerian strike force caught the Estovakian Aerial Fleet by surprise. The 9th Tactical Fighter Squadron "Strigon" was launched from the Aigaion in an attempt to intercept the Emmerian aircraft, but were soon shot down. Eventually, the entire air fleet was destroyed, with the Aigaion's final blow being accredited to Garuda One on the 28th Tactical Fighter Squadron. With no support from the Aigaion, the Estovakian Military found itself under a heavy counter-attack during the following months.