What you wrote in the first paragraph, might be a reason... what you wrote in the 2nd one, I cetainly won't contest - that's how wars worked in general in former times (one attacks, the other retaliates). Here clearly Pakistan's airforce attacked the first Indian soil because the Pakistani government feared to lose East Pakistan through India supporting the East Pakistani Liberation Front:
1) The Pakistani Military Regime launched their "Operation Searchlight" to suppress the endeavour in East Pakistan for independence which
2) lead to about 10 million people fleeing to India which
3) created not only a humanitarian crisis but also economical and social strain on that region in India which
4) brought Indira Gandhi to support the liberation struggle actively with providing weapons, training and military which
5) made Pakistan realise that East Pakistan would get lost, so they launched the airstrikes... etc.
And who created this East Pakistan (East Bengal)??? Certainly not those who had been against a dividing of India from the very beginning. It had been the British 'Crown' (who wanted to get rid of a responsability for a country they had occupied since 90 years as a 'crown colony') and politic leaders who did the partition on religious ground. What a short-sighted decision!
If one knows a bit about why there are so cruel wars between Israel and Palestine...well... look at the British 'Crown' and what they did there after the 2nd worldwar had given them immense financial problems... Just ask: what happened with the british "Mandatory Palestine"? ... quite the same what happened with the former "British India".
Kyunki Saas Bhi Kabhi Bahu Thi 2
Anupamaa
6