However, you are ignoring the fact that those interventions occurred because Afghanistan had attempted multiple times to destabilize Pakistan - going all the way back to Pakistan's independence - through supporting the various Baluch insurgencies and trying to spark a Pashtun insurgency. The Soviet invasion and massive atrocities against the population again forced Pakistani intervention (and US) because of how it impacted the Pashtun in Afghanistan (and therefore in Pakistan)and the dangers it posed to Pakistan in terms of Soviet designs on Pakistan, possibly in conjunction with India.
You've got a point there. But, after the partition in '47 the Afghans more specifically the Pashtuns didn't want to recognize the Durrand line as IB. I guess that led to whatever they did there.
The intervention post Soviet withdrawal was once more a result of minimizing the extremely negative impact on Pakistan from the instability and chaos resulting from civil war in Afghanistan - millions of refugees, drugs, crime violence, as well as reducing the chances of of brutal warlords affiliated with Russia and India gaining power and reverting to the days of the past when insurgencies and violence in Pakistan were supported out of Afghanistan. Additionally, there was the desire to expand trade with the CAR"s and tap into their energy potential via Afghanistan, which would have also immensely benefited the Afghans due to transit fees and the investment from the infrastructure that had to be set up.
Afghanistan, post SU withdrawal was relatively stable under Dr Najubullah, with a few Mujaheedin (supported by the CIA and Pakistan) fomenting trouble. The fact that the secular govt of Najibullah lasted for such a long time says a lot about Afghans. However the fundamentalist (read Islamic) remnants of the struggle against the SU occupation didn't want a commie govt at the helm and along with support from Pakistan (werent those Mujaheedin told that a Godless govt was in power and a threat to Islam?) kept up their fight against the secular govt in power ultimately driving them from the center. India was a supporter of Dr Najubullah and after his ouster, only then did India start supporting some of the factions among whom were the Lion of Panjshir! It was Pakistan who was supporting the various Mujaheedin who later trained their guns on each other in the greed for power dragging the country into chaos. Not that India was an angel, but India had to safeguard her interests as well and did/does what has to be done, just like Pakistan.
The motivation behind Pakistani intervention has little to do with considering Afghanistan a 'backyard', and everything to do with ensuring that Pakistan's security and stability is not compromised by regimes in Afghanistan supporting irredentist goals and violence in Pakistan, as they have done in the past.
I disgree with security excuse of Pakistan. After the Su withdrew, Pakistan intoxicated with what it considered a victory over the mighty godless SU (days of Zia and Islamization of Pakistan, and India's supporter), became heady and started considering Afghanistan as its sphere of influence. They supported the Mujaheedin and when chaos broke out with India getting herself embroiled into the mess, Pakistan started looking for options. Thats when Mullah Omar popped up and led to the creation of Taliban and as they say, the rest is history!
The question is not of India supporting the Afghans, the question revolves around the regime and warlords in Afghanistan allowing their state to be used as a proxy and launching pad for terrorism and destabilization in Pakistan, as is occurring now and has in the past. If you could do the former without the latter that would be ideal - but as of right not that is not the consensus in Pakistani circles, and even some Western analysts.
Agree with a part of your point here. I cannot comment on the intricate interplay and rivalries of those various factions and which ones were involved in creating unrest in Pakistan and which ones were not. However, you do realize that with such a huge refugee population, various warring factions commanded loyalties even with the refugees causing many problems in Pakistan.
So yes, going by history, there is a legitimate concern that an Afghan government influenced by India will seek to push the same kind of covert means of destabilizing Pakistan that it has in the past.
India has no interest in seeing Pakistan fail. Just like an unstable Afghanistan is a headache for Pakistan, an unstable, chaotic Pakistan is a headache for India. At this point of time, when the Indian economic interests are on the rise, India doesnt want to see an unstable neighborhood, least of all an unstable Pakistan. It would hit our interests very badly. Why dont you realize that?
There were lots of people in high positions who went along perfectly well with the distorted and fabricated case for war against Iraq - just as there were many who went in war into Afghanistan without giving negotiations and dialog a good chance. So 'high positions' on their own do not mandate 'good sense' or 'accuracy' - you have two major wars started by the US and hundreds of thousands dead, and possibly trillions lost and spent (by the US and the economies that have had to suffer as a consequence) to illustrate my point.
Iraq war = unnecessary and wrong! But they all might have had an ulterior motive or rather it was a result of the military-industrial complex who wanted a massive influx of funds for many projects.
Afghan war - rightly so. Taliban deserved to be thrown out. The Kandahar hijacking where ISI (so claims India) instead of trying to help to negotiate the release of passengers, apparently told the taliban to demand release of Pakistani terrorists from Indian jail, and secondly when US demanded OBL, he told the taliban to sit it out! What had Pakistani terrorists cooling heels in an Indian jail and a Saudi
persona non grata got to do with Afghan interests? Not to mention the way Afghan people were treated like animals! Taliban had to go. Period.