From Halopedia, the Halo wiki
Pakistan is a country on Earth, located in the southern Asia. Pakistan is one of the last Islamic republics remaining on Earth in the 26th century. It has radically modernized itself, however, and is not as harsh a region as it once was. Though it is considered overcrowded.
On November 17 during the Battle of Earth, UNSC Marines engaged Covenant forces in Sector Six of the Pakistani-Afghani border region. Though several of the Marines were killed, one was able to determine the trajectory of SPARTAN John-117's descent from the Prophet of Truth's Forerunner keyship. This enabled the UNSC to quickly locate the Spartan, who landed near the border between Tanzania and Kenya in the East African Protectorate.
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