So, get that cup of coffee and read my summary of who they are and where they are and what they are doing. It's three pages in Word, so.................. The Mara (MAH-rah) Salvatrucha (Sahl-vah-TRUE-cha) or MS-13 or Surenos (Sur-ehn-yos), is a gang that has successfully spread out in a web of crime... Sign in to see full entry.