In 2009, decades after being pushed out of the military, Haider published his explosive memoir titled Flight of the Falcon: Demolishing Myths of the 1965 and 1971 Indo-Pak Wars. The book sent shockwaves through the South Asian military establishment because it directly challenged the polished, official state-sponsored narratives of both conflicts.
Using his own meticulously preserved personal mission logs and official flight records, Haider proved that the 1965 war was stumbled into blindly due to the failure of the Army's covert Operation Gibraltar in Kashmir.
He revealed that the top army brass kept the Pakistan Air Force completely in the dark about the operation, leaving the air fleet utterly un-briefed until full-scale conventional war was already imminent.
His writings explicitly criticized state historians for overly romanticizing individual dogfights to systematically mask massive logistical and strategic blunders made by top generals.
The book remains one of the most heavily cited and fiercely debated pieces of military literature in the region, cementation his legacy as an uncompromising, truth-telling maverick.