Explanation

President Muhammad Zia-ul-Haq was instrumental in mediating the Iran-Iraq War during the early 1980s.

His efforts were particularly notable in the latter part of 1982.

Zia-ul-Haq engaged in diplomatic efforts to encourage negotiations between Iran and Iraq, aiming to bring an end to the conflict that had started in September 1980.

His mediation efforts continued through 1982, demonstrating Pakistan's role in seeking a peaceful resolution to the war.