You don't get what I'm saying is because you're Indian (no offense). You consider yourself to be the only enemy of Pakistan. Does Afghanistan have as much SAMs as India (After complete US withdrawal)? I was simply giving a general opinion. And what better jets PAF has? If PAF has to do pre emptive strikes or take intrude in enemy space, it'll send F16s or whatever best jets it has. It'll not be sending old tech in bunch of numbers (this includes jf17 as it may not be good as F16s, despite being new, so you know what I mean).
If USA has to intrude into enemy territory, it sends the best. Remember when it killed Osama? It didn't send bunch of F15s or alike, just a couple choppers (really advanced ones too). Easier to manage and so forth. Which is precisely what I mentioned, do the job and get out.
We don't know what the future holds. Pakistan could be broken apart or Iran. Afghanistan could be an advanced nation.
The bottom line is, send small amount of best capable jets for the job, achieve target and withdraw. No sending 50 useless jets.
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Israel sent F15s and F16s (which they acquired just before the attack), then one of the top tech they had. Sent small amount. Didn't raise alarm. Coordinated easily.
If there ever is a need to attack Indian nuclear sites (Assuming India has only one, for simplicity and for giving example), PAF will send a few of best jets (F16s for now) instead of 20 JF17. Plus, not the entire border is covered with SAMs and sometimes they don't notice intrusion. In case of Israel, they dodged Jordan and Saudia. So much goes into planning. But the bottom line is, send a few jets rather than all.
Also you didn't make sense with bunch of dots between sentences. I type on tablet, what's your excuse?