Markos Moulitsas was born on September 11, 1971, in Chicago, IL. The son of a Salvadoran mother and Greek father, Moulitsas spent his formative years in El Salvador (1976-1980), where he saw first-hand the ravages of civil war. His family fled threats on their lives by the communist guerillas and settled in the Chicago area.

After high school, Moulitsas served in the U.S. Army (1989-92) as a 13P -- Multiple Launch Rocket System (MLRS) Fire Direction Specialist. He trained at Ft. Sill, Oklahoma and served the remainder of his three-year enlistment in Bamberg, Germany. While he entered the Army as a Republican, he abandoned the GOP soon after his enlistment.