Elsweyr is a fictional country in The Elder Scrolls Series. This country is home to the Khajiit, a Feline race known for making Moon Sugar and Skooma. Elsweyr borders Valenwood and Cyrodiil.
You can explore Elweyr in two games, The Elder Scrolls: Arena and The Elder Scrolls: Online.
As of the events of The Elder Scrolls: Blades and The Elder Scrolls V: Skyrim, Elsweyr is a Client State of the Third Aldmeri Dominion. Elsweyr is largely independent but is heavily influenced by the Third Aldmeri Dominion. The reason for the Switch from The Empire of Man to a Client State of the Third Aldmeri Dominion is from an event called The Void Nights where Masser and Secunda disappeared from 4E 98-100, The Thalmor claimed to have brought back Masser and Secunda.
Nord: You Khajiit aren't allowed in our cities!
Khajiit: If Skyrim is for the Nords, Khajiit thinks you can bloody well keep it!
Nord: Go back to Elsweyr you cat!