Sol Defense Industries hails from the Sol star system and dates back to Before the Opening of the Wormhole to New Eden. For the thousands of years of Darkness after the collapse, SDI Units remained in stasis in a distant corner of New Eden. Hidden by sophisticated cloaking technology until recently discovered and Re-Activated By an exploratory expedition of the Caldari State, Researchers were shocked to discover SDI Personel were already Equipped with Technology compatible with Current Day Capsuleer Cloning tech. As such, the State provided Expert Injection into All State of the Art Caldari Warships and Immediately Enlisted SDI Into the Caldari Military Arm. SDI Is tasked with bringing a swift end to the Enemies of the Caldari State.