The Starfleet 12th Marine Regiment (known to troops as the Yellow Demons) was a Starfleet marine regiment military unit consisting of numerous Starfleet Marines, under the command of Colonel Anchar Ahab. In the 23rd century's Four Years War between the Federation and the Klingons, the 12th was landed with four other regiments at Karag. The Karag forces were pinned down by superior numbers when Colonel Ahab performed a highly successful and entirely unprecedented maneuver in a shuttle, firing handheld cannon weapons through an open door to clear the way for his troops. (FASA RPG module: The Four Years War)