The Atlántidan Defense Militia (Atlántidan: Milicia de Defensa do Atlántida; Creeperian: Milicia de Defense Atlántidañero; abbreviated as MDA; also known as Os Heroes en Negro or Los'Héroes en Negro, translated as The Heroes in Black) is a series of Atlántidan vigilante militias, likely composed of mostly police and military personnel, which mainly target atheists, gang members, and other criminals. The group existed from 1944 to 1952 as a belligerent in the Creeperian Civil War and was later resurrected in 1979. The group appears then disappears every year, usually committing around 5 to 7 murders per year.
The modern group's primary targets are gang members, most of whom associate with Mara Salvatrucha, Creeperopolis' largest criminal organization. Atheists are also another significant target of the group. As a consequence, the group has a generally favorable view among the Creeperian public, as gang members and atheists are seen as a "pest" in Creeperian society. The group has been described as a death squad by domestic and foreign sources.
