1971 Indo-Pak war: the only war which was not about Kashmir. It was about Bengal and the genœcide of Bengalis done by West Pakistani army in East Pakistan.
There were always tensions between the Bengalis and the Punjabis of West Pakistan. Bengalis were viewed as being “inferior”
Pakistan came into existence in 1947 but it retained the British monarch as its head of state until 1956.
Liaqat Ali Khan became its first prime minister in 1947. He was assassinated in 1951 by an Afghan with unknown motives.