Battle of Sector Six

The Battle of Sector Six, also known as the Battle of Pawas, was an engagement between UNSC and Covenant Loyalist forces. It took place east of the Afghan town of Pawas, near the current Pakistani-Afghan border. The exact coordinates as seen in Halo: Combat, Part 1 are 32°53′12″N, 69°27′48″E.

Background
The ODST pair, Bravo-21 and Bravo-22, were tasked with calculating the crash site of the Master Chief on Earth, while a Marine Battalion were tasked with defending a narrow corridor between Covenant and UNSC forces in Pakistan. Bravo 21 and numerous Marines were killed in the fighting, Bravo 22 was injured along with the other marine survivors.

Trivia

 * The battle is first seen in the Halo 3 shorts, Halo: Combat, Part 1 and Halo: Last One Standing.