Didn't happen before, not going to happen now. The scale of this particular incident looks to be quite big. Not sure if Pak-China nexus is upto something here.
1. The scale will be much more in coming days, just like in 1948 during invasion. This is a trial.
2. Pakistan and China both are trying to demoralize Indians, Chinese started with psyop, pakistan with proxy.
3. These days Pakistan doesn't have a formal ISI chief. So if anything happens, they don't have to replace any one like after Pulwama.
4. Pakistan is buying chinese weapons so they have to suppress their deployments and create diversion.
5. UP and Punjab elections are coming this is the best time for both countries to defame Modi.
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What Indian military lacks is the green signal. Nothing else. Every one knows in 6 months people will forget it when cricket starts.