As a Pakistani, i must say that Pakistan has improved much in last 7 decades. But still we have to go along way from here. In last 70 years Pakistan have faced many major issues including domestic and international. It is not that easy for Pakistan and for the people living in Pakistan to live in peace because our enemies do not want to see us stable and the keep hurting us in many ways.
wound # 1:
Partition of Bengal is a very deep wound to Pakistan. Many people were involve in it directly or indirectly who have planned the partition of Bengal. Zulfiqar Ali Bhutto, Sheikh Muneeb-ur-Reham, Yahya Khan ( President of Pakistan at that time) and the Government of India are the major characters who have played their part in this partition.
If you are a Pakistani then you will blame Sheikh Muneeb-ur-Rehman, Mukti bhaani (Terrorist wing of Awami League) and India for this and As a Bengali you will blame Zulfiqar Ali Bhutto, Yahaya Khan and all of above Pakistan army.
But i think that they all are culprits( excluding Pakistan army). Once a person went to perform Umrah there he see's a lady. He reported that, she hold the GHALAFAY KABBAH tightly and started crying. The person who seen this scene tell's that women prayed from ALLAH that "Aey ALLAH punish all those people who became the reason of partition and death of there beloved ones".
And then see Zulfiqar Ali Bhutto, Yahya Khan and Sheikh Muneeb-ur-rehman they all were killed in a very tragic way. Bhutto was hagged, Muneeb-ur-reham was murdered with his family and Yahya lost his senses.Noboby lived a good life after that.