Rank 5. Pakistan
On any global list of sh*t-talkers, Pakistan has historically rated very high, especially toward its longtime arch-nemesis, India (although new Pakistani Prime Minister Imran Khan seems more conciliatory). The Pakistanis see India as an existential threat, and are not likely to stop anytime soon.
So, after fighting four pitched wars against India and losing all of them, prioritizing air power would seem to be the way forward if Pakistan was still going to rattle the saber every so often. RAND Corporation studies still declare that the Indian Air Force would have air supremacy in any war against Pakistan. Only very recently has Pakistan decided it would be best to upgrade their fighter aircraft. So, in a joint venture with China, they created a bargain-basement version of the F-16, the JF-17 Thunder, which now makes up the bulk of the PAF.
To give you an idea of how (in)effective the Thunder is, China doesn’t fly it. Neither does anyone else. Immediately dubbed the “Junk Fighter-17 Blunder,” the aircraft is dangerous to fly at lower speeds, it can’t fly as fast as older Pakistani airframes (and certainly not as fast as India’s fighters), and it can’t use similar avionics and munitions as its other fighters, which was one of the missions in creating the fighter in the first place. If all they wanted to do was replace their old fleet, then mission accomplished. If they wanted to beat India in an air war, well, it doesn’t look good, but it remains to be tested.
Aside from the JF-17, the PAF lags behind India in terms of both numbers of combat aircraft and the actual serviceable aircraft fielded at any given moment. It also lags behind its rival in terms of training and ability. Even when facing superior Pakistani firepower, skilled Indian pilots still manage to best the Pakistanis.
It’s a good thing the two countries face a nuclear detente.