There was no travel ban to Pakistan in 1981, only an advisory.
https://dosfan.lib.uic.edu/ERC/travel/cis/southasia/TA_Pakistan1981.pdf
There was no travel ban to Pakistan in 1981, only an advisory.
https://dosfan.lib.uic.edu/ERC/travel/cis/southasia/TA_Pakistan1981.pdf