At the challenge of a Pakistani, I took a book home from the library on Pakistan and read it. Although I have studied history all my life, there is no analogue for Pakistan. Those who have trouble with Shia and Sunni would be advised to stear clear of Pakistan. It is very complicated, and the government is weak. They have an army, and that’s about it.
Very important points. But it is not considered polite to mention things like that.