Pakistan in the Iran–Iraq War

[3][4] In a state visit paid by Pakistani President General Zia-ul-Haq to the United Kingdom in the mid-1980s, he correctly predicted that the conflict "will end up in a military stalemate".

[5] Reciprocating President Zia's sentiments, Imam Khomeini in his letter called for Muslim unity[5] and declared, "Ties with Pakistan are based on Islam.

Reportedly, Pakistan also began to supply conventional weapons to Iran, and both neighbours supported the Afghan jihad against the Soviet Union but different factions of the resistance.

[6] The Pakistani military officials strongly objected killing of Iranian pilgrim riot by the Saudi Arabian Army on the annual Hajj pilgrimage to Mecca in 1985.

[1] Conversely, Pakistan exported and sold numbers of Chinese and US weapons to Iran, specifically the Silkworm and Stinger missiles which proved to be a crucial integrating factor in the Tanker War; they had originally been bounded for the Afghan mujahideen against the Soviets.