We have survived a whole lot more than 600 year. Wonder how we survived all those years before the people that we needed to flatter for our survival did not exist.
Is that what your parents told you. Maybe you should read the CIA report https://www.cia.gov/library/readingroom/docs/CIA-RDP85T00875R001700020087-3.pdf to see how the blockade failed.
It is strange that you bring up WWII stories and then find 1971 too old.
The war was fought on 2 fronts. You got wiped out on one of the front.
Karachi burned. Its was on western front. You could not get any major city of India burn. We closed down only major port.
Zardari has also not been proven guilty anywhere. His only conviction has been overturned. Shouldn't he too go through the proper court system before you call him Mr.10% corruption king.
You will find that difficult if you don't put the fuel under safeguards. You need to mine your own fuel if you want to go independent. And even then you run the risk of sanctions.