Multan and surrounding areas have heavy population of Syriac origin natives...releations of trade and military between Assyria, Levant and West Asia (now part of Pakistan) are as old as Indus valley civilization. We used to be pretty international with influence extending far into Levant and Europe.
By the way Pakistanis are everywhere in the world with their cross-racial marriages. Even in Saudi, Pakistani men top the list of non-Arabs marrying Saudi women and this is funny because the other way around..Pakistani woman marriage to Saudi man is banned by law. We seem to be a nation fond of foreign women. Long time ago I read an article about Israeli internal security raising the alert on around 1200-1400 Pakistani men married to Israeli women!
I have a famous saying "Its not easy being a good looking man in todays world", I say to my wife to bug her some time