1951: A dispute breaks out on an island between Maxell and Willsword. 1955: Willsword wins the conflict. Urkafi is founded on the island and becomes an ally of Willsword. 2005: Urkafi becomes the Principality of Lidolphi. 2030: Development of quantum radar neutralizes stealth fighters. 2040: It turns out that AI in unmanned combat aircraft can't beat manned aircraft. 2054: Maxell invades Lidolphi territory. There will be a conflict. 2055: A prototype of an ultra-short-range laser interception system is completed. 2056: The UN issues a statement of condemnation. UN troops are called in and the conflict ends. 2058: Maxell and Willsword conflict. (Gunship Recon) 2059: Willsword develops XF-97 prototype. 2060: A coup d'etat breaks out in Maxell. (Air Combat XF) 2060: XF -98 development is complete. 2062: Maxell invades Willsword (SkyGameChanger - Air Combat II -) 2063: A peace treaty is concluded with the intervention of the United Nations. 2067: Maxell invades Willsword again (Massive Air Combat) 2068: Development of the XF -99 is complete. 2069: Development of the XF-01 (mass-produced XF) was completed. 2072: The war ended with Willsword's victory. 2074: MF -100, a mass-produced version of the XF, is supplied to the Duchy of Lidolphi. (Air Combat MF) 2075: Within Maxell, the Eastern Laurasia becomes independent and a conflict erupts. (AA Soldiers) 2385: Conflict between the two countries occurs in outer space.(Space Battle SVF)