Anshar is the name of a primordial Sumerian deity, as well as the name of an alleged subterranean civilization.

Sumerian / Babylonian mythology

Anshar is the name of a Sumerian / Babylonian primordial god. The Enuma Elish mentions him as the father of Anu!

Wikipedia: "In the Sumerian, Akkadian, Assyrian and Babylonian creation myth Enuma Elish, Anshar (also spelled Anshur), which means 'whole heaven', is a primordial god. His consort is Kishar which means 'Whole Earth'. They were the children of Lahamu and Lahmu and the grandchildren of Tiamat and Apsu. They, in turn, are the parents of Anu, the god of heaven, lord of constellations, king of gods, spirits and demons."

Subterranean civilization

Self-proclaimed whistleblower Corey Goode says the Anshar are one of the ten subterranean breakaway civilizations here on Earth. (See Agartha). Their civilization allegedly is 18 Million years old. They have theirown space fleet. Goode claims these Anshar have decided to end secrecy of their existence and work with humanity.