- This article is about an in-universe event. For the in-game mission, see Glacial Skies.
Following the beginning of the Belkan War, the Belkan military initiated an unstoppable approach to Ustio territory, which had been Belkan soil in the past. 70% of Ustio's air force was annihilated during their advance, taking out many important bases in the process. Once almost the entirety of Ustio had fallen to the Belkans, the remaining forces retreated to Valais Air Base, located in the south-east of Ustio. The Belkans decided to stamp out Ustio once and for all by taking out Valais AB.
On April 2, 1995, a major squadron of Belkan bombers (consisting of B-52H Stratofortress and BM-335) was sent to eradicate Valais. At this time, Valais scrambled its remaining aircraft to intercept the bombers. Included in those launched was the mercenary 66th Air Force Unit "Galm", which then comprised of "Solo Wing" Pixy and Cipher, two mercenaries with previous flight experience (Pixy himself was very well-known among the other mercenaries for his completing a mission and landing safely with one of his plane's wings missing, earning him the title "Solo Wing").
Quite surprising to the bombers, the mercenaries were taking them down without a problem. Pixy took out most of the escorts while Cipher engaged the bombers, with the other mercenaries providing back-up where they could so Pixy wasn't getting all of the reward money. Soon enough, the entire bomber force was destroyed, and Valais lived to see another day.
Given this small victory, the Allied Forces were able to regroup and hopefully start a counter-attack. The victory was short lived however, as they quickly realized they still had very little land left in Ustio, and so a counter-attack took place a few weeks later.
- Otto 5 (One of the B-52s) had lost IFF functionality and attempted to escape the combat area. Accounts vary, where some say that he successfully retreated, while others say that Cipher shot him down regardless.
- Sometimes if Galm Team destroys a fighter, he or an ally will reveal his squad name. There are currently two known fighter squads: Meteor & Bussard.