The UNMS-01A Frontline, generally known by its official designation of United Nations Mobile Suit Generation 1A Frontline, or simply called the Frontline by their operators was the first mobile suit series of the Generation 1 line. The UNMS-01A Frontline was typically utilized by the United Nations Space Command Defense Force and their allies later on with the main intent of being used as an Mass Produced Infantry Suit. The Frontline was designed by the scientists of Project AEOLIA and was manufactured by the Human contracted Revolutech Advanced Industries, a company largely known for its affiliation with Project AEOLIA and its hand for aiding in the manufacture of AEOLIA's unique technologies. The Frontline was developed in the late 2400s as a means to combat the Insurrectionist Threat