Outer expanse

The outer expanse, often referred to as the third rim, was the furthermost ring of consistent Human expansion during the third millennium CE. A lack of regular garrison by the United Nations Space Command combined with relative safety against external threats allowed for a variety of insurgent groups to take root in the expanse.
==Behind the Scenes==
*This is not to be confused with the Outer Colonies, which has since been renamed the first rim.
==Further Reading==
*Core
*First rim
*Second rim
*Outskirts