Sometime after bolstering their ranks with the artificial womb (A.W.) soldiers, the United States Colonial Marine Corps also started to experiment with bolstering their ranks with combat androids, specifically ones that followed the Three Laws of Robotics. Much more cost effective and lower maintenance then their human counterparts these models were seen in action early as 2192. Much more humanistic then previous models, some were known to experience even the most intense human emotions such as falling in love. Still self-aware of their origins, these models were precursors to later advanced models