Gunjou no Sora o Koete

You start off as Yashiro, one of the two first rank students in a flight combat school maintained by the army. Japan is split into two factions and the situation is tense, with small battles being held here and there.
His father was the one who caused the entire splitting up and tense situation, with the proposal of some yen economic plan.
Life isn’t exactly as easy as normal school life over there, with it’s hardcore training. Still, he still manages to talk with friends and just act like a somewhat normal guy of his age should act.
But things never go right. Rumors have that a war is starting. That means he’ll have to go out to the frontlines as a pilot killing people. Can he save what his father has caused or can he even survive till the end of the war?

[Edited from a review by Accany]