Main article: Usean coup d'état
On May 30, 1997, the Usean Rebel Forces, formed as a result of the treaty, launched a large-scale rebellion across the Usean Continent. The Usean Allied Forces, who were taken by surprise, were forced to retreat to the west.
As the rebels's power grew rapidly, several military units defected to the rebel forces, such as the Federal Erusea Air Force's Albireo Squadron and the Usean 2nd Fleet. All forces were consolidated into armed branches bearing the prefix USEA Unified (USEA Unified Navy or USEA Unified Air Force).
Operation: Fighter's Honor
On March 20, 1998, the Usean Rebel Forces dispatched a number of bombers to Twinkle Islands level the Allied base located there. As a response, Phoenix, Scarface Squadron's leader, was sent on his first official sortie to shoot down the incoming bombers. At this point, the Usean Allied Forces began to turn the tide of the war in their favor.
In the following months, the rebels began to lose territory at an alarming rate. Key installations, such as The Keep and Turntable, were destroyed. As the war progressed, the Usean Allied Forces pushed the rebel forces back eastwards.
The Usean Rebel Forces ultimately made a last stand at North Point, where they would launch an ICBM from Fortress Intolerance as a last ditch effort towards the Union of Yuktobanian Republics in the hopes of sparking worldwide conflict as a result, and escape from the chaos.
On September 18, 1998, the rebel forces defended Fortress Intolerance from the incoming Scarface Squadron, but failed as the latter destroyed the ICBM from within the fortress, ending the Usean coup d'état in Allied victory.
- F-14D Super Tomcat
- YF-23A Black Widow II
- F-22 Raptor
- MiG-21-93 Fishbed
- MiG-31 Foxhound
- Su-47 Berkut
- F-4E Phantom II
- F/A-18E Super Hornet
- F-15SE Silent Eagle
- F-16C Fighting Falcon
- F-35 Lightning II
- Rafale M
- JAS-39 Gripen NG
- Su-37 Terminator
- PAK FA
- Battle cruiser
- Aircraft carrier
- Landing ship
- Missile boat
- Dragonet-class submarine
- ↑ 1.0 1.1 Ace Combat 2.
- ↑ 2.0 2.1 Ace Combat: Assault Horizon Legacy.
- ↑ 3.0 3.1 Intro cutscene, Ace Combat: Assault Horizon Legacy.
- ↑ Aces At War: A History, page 136.
- ↑ Character profiles, Ace Combat: Assault Horizon Legacy.
- ↑ Gambit, Ace Combat 2.
- ↑ Gambit, Ace Combat: Assault Horizon Legacy.
- ↑ 8.0 8.1 Fighter's Honor, Ace Combat: Assault Horizon Legacy.
- ↑ Fighter's Honor, Ace Combat 2.