Sector Six
From Halopedia, the Halo wiki
Sector Six[1] was formerly a location on Earth.
Orbital Drop Shock Troopers Bravo-21 and Bravo-22 were ordered there during the Second Battle of Earth to get medical attention from a UNSC medic at that location. The ensuing battle, the Battle of Sector Six, met with heavy casualties on the behalf of both UNSC Marine forces and Jiralhanae forces.
Its coordinates were at 32°53′12″N, 69°27′48″E on Earth [2], and Sector Six was believed to be two miles east of Pawas, Afghanistan, a small town on Earth.