Gobi

The Gobi is a mentioned only location.

Background
The desert was the site of the Gobi Campaign during the Resource Wars. Lennox knew a fighter pilot who was caught in a sandstorm in the desert while flying in formation with three other jets. While the pilot ejected and lived, the three other jets and their pilots were gone.

Appearances
The Gobi is mentioned in Fallout: New Vegas and

Behind the scenes
The Gobi Desert is a real world location of the same name.