A supranational organisation formed from the ancient European Union of Old Earth. As the political climate on Earth in the mid 21st century deteriorated, the EU became focused on greater centralisation, and in the interest of bringing together squabbling member states: formed a single-government with limited devolution per state, reformed into what became the United European States, or UES.

The UES would eventually go on to form an alliance with the United States of Northern America; the Western Alliance, essentially replacing the ancient NATO military organisation as the dominant 'western' power on Old Earth.