The Amerons are humans, most of which came originally from South Africa on old Earth, who settled the planet of New Hope. They are not part of the Federation -- having pulled off a quiet but highly successful rebellion -- but have close economic ties to the Rep-Com.
Ameron Regulars are "cheap troops' having only cone rifles, cloth uniforms and are not jump trained. Ameron military units often hire out as mercenaries and guards. Their grim fundamentalist faith has sustained the troopers through many a harsh duty.