United States of North America (in short: Union States, the State, USNA, or the Federation) is a federal constitutional democracy comprising 29 planetary commonwealth, span across 14 solar systems. By late 21st - early 22nd century, the most distant colony world within the Union States Sphere is 72.27 light years from the Solar System(1) The nation encompass the whole North and Central Americas, and later, the Caribbean region; rising after the reformation of Greater America Republic, transforming from a militaristic-corporatist superstates, into a federal democratic one within a decade.