What Is MS 13?

The Mara Salvatrucha, or MS13, is perhaps the most notorious street gang in the Western Hemisphere.

While it has its origins in the poor, refugee-laden neighborhoods of 1980s Los Angeles, the gang’s reach now extends from Central American nations like El Salvador and through Mexico, the United States, and Canada.

They rob, extort and bully their way into neighborhoods and have gradually turned to transnational crimes such as human smuggling and drug trafficking.

Their activities have helped make the Northern Triangle Guatemala, El Salvador, and Honduras — the most violent place in the world that is not at war.

In October 2012, the US Department of the Treasury labeled the group a “transnational criminal organization,” the first such designation for a US street gang.


The MS13 was founded in the “barrios” of Los Angeles in the 1980s.

As a result of the civil wars wracking El Salvador, Guatemala, and Nicaragua, refugees flooded northward. Many of them wound up in Los Angeles, living among the mostly Mexican barrios of East Los Angeles.

While the Mexican gangs reined in the local underworld, the war-hardened immigrants quickly organized themselves into competing groups, the strongest of which was called the Mara Salvatrucha.

The gang was initially composed of refugees from El Salvador in the Pico Union neighborhood, which is where the name comes from: “mara” is a Central American term for gang; “salva” refers to El Salvador; “trucha,” which means “trout” in English, is a slang term for “clever” or “sharp.” However, with the concentration of Spanish speakers in Los Angeles, the gang expanded into other nationalities and then into other cities.

The gang’s rivals took note. One, known as the Mexican Mafia, or “la eMe” for short, one of the most storied of California’s gangs, decided to integrate the MS into their regional Latino gang alliance.

Called the “Sureños,” the alliance included many prominent gangs and stretched into much of the southwest of the United States and Mexico.

It afforded the MS more protection in the barrios and in prison. In return, the MS provided hitmen and added the number 13, the position M occupies in the alphabet, to their name. Thus, the MS became the MS13.

By the end of the 1990s, the United States tried to tackle what they were starting to recognize was a significant criminal threat.

Partly as a way to deal with the MS13, and partly as a product of the get-tough immigration push toward the end of the Clinton presidency, the government began a program of deportation of foreign-born residents convicted of a wide range of crimes.

This enhanced deportation policy, in turn, vastly increased the number of gang members being sent home to El Salvador, Honduras, Guatemala, and elsewhere. According to one estimate, 20,000 criminals returned to Central American between 2000 and 2004. That trend continues. One US law enforcement official told InSight that the United States sends 100 ex-convicts back per week just to El Salvador.

Central American governments, some of the poorest and most ineffective in the Western Hemisphere, were not capable of dealing with the criminal influx, nor were they properly forewarned by US authorities.

The convicts, who often had only the scarcest connection to their countries of birth, had little chance of integrating into legitimate society. They often turned to what they knew best: gang life. In this way, the decision to use immigration policy as an anti-gang tool spawned the virulent growth of the gang in Honduras, El Salvador and Guatemala.

MS13’s principal activities vary a great deal from one region to another. In Central America, where the gang’s reach and size (relative to overall proportions) is largest, MS13’s operations are more diversified. This includes extortion, kidnapping and controlling the neighborhood illegal drug market.

Their crimes, such as extorting the bus companies, are arguably more disruptive on a daily basis to more people than any other criminal activity in the region. In the US, in contrast, the gang operates much more like an average street gang, with an emphasis on local drug sales and “protecting” urban turf.

The MS13 also maintains its relationship with the “M.” The MS13 have designated certain middle-men to pass tribute to the gang in Los Angeles.

Some ascertain that the two organizations have formed a sort of international triangle of power that runs from the Los Angeles area to El Salvador and back through the Washington DC-Virginia corridor.

Though their historical roots lie in Central America and the cities of the United States, much of the recent growth of the MS13 has been concentrated in Mexico.

The gang is strongest in the border region with Guatemala, especially the state of Chiapas.

Drawn by the tens of thousands of Central American migrants seeking illicit passage through Mexico to the United States, the MS13 has developed into one of the foremost players in the nation’s thriving human trafficking industry.

Thanks in large part to their shared territory, the MS13 has also begun to carve out relationships with some transnational drug trafficking networks.

In Central America, the MS13 provides crucial manpower for the foreign organizations, helping gangs like the Zetas and the Sinaloa cartel sell drugs in the local market, intimidate rivals, and carry out executions.

The group’s role in human trafficking in southern Mexico has also allowed them to forge business relationships with some of the larger criminal groups, such as the Zetas, that have branched into that field.

Throughout its existence, various governments’ attempts to reduce the threat posed by the MS13 has instead often had the perverse impact of spreading the threat posed by the gang.

Perhaps the most obvious example is the aforementioned policy of deporting foreign nationals committed of crimes in the United States.

But Central American governments have also contributed: the “mano dura,” or “iron fist” policies, which jailed youths based on appearance and association as well criminal activities, became the norm following their implementation by Salvadoran President Antonio Saca in the early 2000s.

As a result, El Salvador, Honduras, and Guatemala saw their prison populations overflow with members of the MS13 and other gangs.

Because the brittle prison systems in each of those nations was unprepared for the sudden influx of thousands of violent and organized gang members, violence rose sharply inside jails.

In response, authorities separated the gangs, but this opened up space for them to reorganize. In prison, for example, they are given a freedom and safety that is no longer possible on the outside. They frequently have access to cellular phones, computers, and television.

As a result, MS13’s Central American branches have been able to rebuild their organizational structures from inside prisons walls, as well as expand their capacity to carry out crimes such as kidnappings, car robberies, extortion schemes, and other criminal activities.

The gang is now in its second or third generation and the cycle appears difficult to break.

Youth enter as they often see it as their only way through the rising violence around them.

Entry is often equally violent, including a “13-second” beat-down that can often end in tragedy even before one’s gang-banging career gets started.

Older members seeking to break free find internal rules they might have created keeping many of them from separating.

Some cliques, for example, penalize desertion by killing the person. Even if they can break free of their membership, their tattoos have often branded them for life.

In El Salvador, at least, MS13 members have seen something of a reprieve from their usual violent lifestyle since their leaders and their Barrio 18 rivals agreed to a nationwide “truce” brokered through community groups and the Church and facilitated by the government in March 2012.

The apparent ceasefire was followed by a tremendous drop in El Salvador’s homicide rate that many hoped would signal a major shift in citizen security in the country.

However, some critics of the truce feared it had dangerously heightened the profile of the street gangs, and provided them with the resources necessary to exert greater influence on government institutions.

The United States was also reluctant to endorse the gang truce, increasing pressure on the MS13 since its implementation.

In addition to designating the gang as a transnational criminal organization in fall 2012, the US imposed economic sanctions on six MS13 leaders by adding them to its Specially Designated Nationals List in June 2013.

Concerns over the truce have been further fueled by reports of rising extortion and disappearances since the truce began, as well as the discovery of mass graves. Additionally, homicides began rising again in mid-2013, and continued to rise throughout 2014 and early 2015.

By 2016 and in the midst of record levels of violence, the government launched a series of “extraordinary measures” to aggressively crack down on the MS13 and the country’s other gangs.

The MS13 now finds itself locked in what resembles a low-intensity war with government security forces, though the gangs have sustained the bulk of casualties.

Compounding the pressure on the MS13 has been the emergence of anti-gang death squads composed largely of members of the military and police.

Following another bloody year, the MS13 expressed at the beginning of 2017 a desire to hold negotiations with the Salvadoran government and all the country’s political parties to end the violence, even leaving the door open for an eventual dissolution of the gang.

However, this dialogue is unlikely to take place due to resistance to the idea among politicians and the public.


On paper, the MS13 has a hierarchy, a language, and a code of conduct. In reality, the gang is loosely organized, with cells across Central America, Mexico, and the United States, but without any single recognized leader. The leaders are known as “palabreros,” loosely translated as “those who have the word.” These leaders control what are known as “cliques,” the cells that operate in specific territories.

These cliques have their own leaders and hierarchies. Most cliques have a “primera palabra” and “segunda palabra,” in reference to first and second-in-command.

Some cliques are transnational; some fight with others and have more violent reputations. Some cliques control smaller cliques in a given region. They also have treasurers and other small functionary positions.

To be sure, at its most potent, the MS13 leadership can control the actions of these cliques from afar. This fluid, diffuse structure makes the gang resistant to any single government’s attempt to crack down on it. Arrest the “primera palabra” and the “segunda” quickly assumes control.


Numbers vary, but the US Southern Command says there are as many as 70,000 gang members in the Northern Triangle. The proliferation of gangs has accompanied a spike in murder rates.

Of these gangs, the MS13 is the largest in the region.

Central American immigration to other parts of the United States, such as New York City and the Washington D.C. area, helped foster the spread of the MS13 within the US as well.

MS13’s links to illegal human trafficking from Central America has helped solidify the gang’s place in Mexico’s crowded criminal landscape, especially in the southern border region.

Allies and Enemies

The MS13 is enemies with the Barrio 18, another street gang with an extensive presence in Central America, Mexico, and the United States.

There has also been evidence of the MS13 forming alliances — or acting as subcontractors — for Mexican cartels, such as the Zetas, to move drugs or carry out assassinations.

Additionally, video evidence surfaced in 2016 showing that the gang had secretly negotiated with leaders of El Salvador’s ruling Farabundo Martí Front for National Liberation (Frente Farabundo Martí para la Liberación Nacional – FMLN) party, offering them political support in exchange for economic benefits.


The long-term effects of the gang truce in El Salvador continue to unfold, but it appears the MS13 are as strong as ever, and will remain an immese source of citizen insecurity and a potent force to be reckoned with for Central American governments.

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