The aircraft received its baptism by fire in World War 1, having since evolved to the mounts of today utilizing stealth, supercruise technology and precision-guided munitions. For the purposes of the GFP ranking, both fixed-wing and rotary-wing aircraft are taken into account. Air Force, Army, Navy and Marine air services for each respective nation are all considered as are trainers, transports and the like. Note that aircraft on order heading into 2016 are NOT taken into account.
Total Aircraft strength data through 2015.
Sources: CIA.gov, CIA World Factbook, wikipedia.com, public domain print and media sources and user contributions. Some values may be estimated when official sources are lacking.