The Hondurans who banded together last month to travel northward to the United States, fleeing gangs, corruption and poverty, were joined by other Central Americans hoping to find safety in numbers on this perilous journey.
But group travel couldn't save everyone.
Earlier this month, two trucks from the caravan disappeared in the state of Veracruz, Mexico. One person who escaped told officials that about "65 children and seven women were sold" by the driver to a group of armed men.
Mexican authorities are searching for the migrants, but history shows that people missing for more than 24 hours are rarely found in Mexico – alive or at all.
Mexico's ambiguous welcome
Nearly 22,000 people were murdered in Mexico in the first eight months of this year, a dismal record in one of the world's deadliest places.
Central Americans fleeing similarly rampant violence back home confront those risks and others on their journey to the United States. Doctors Without Borders found that over two-thirds of migrants surveyed in Mexico in 2014 experienced violence en route. One-third of women had been sexually abused.
Mexico's security crisis may explain why so few caravan members want to stay there.
In response to President Donald Trump's demands that Mexico "stop this onslaught," Mexican President Enrique Peña Nieto announced that migrants who applied for asylum at Mexico's southern border would be given shelter, medical attention, schooling and jobs.
About 1,700 of the estimated 5,000 caravan members took him up on the offer.
A recent poll shows that 51% of Mexicans support the caravan. Thirty-three percent of respondents, many of them affluent members of Mexico's urban middle class, want the migrants to go back to Central America.
But reality in Mexico often falls short of the law.
The Mexican Refugee Assistance Commission is supposed to process asylum applications in 45 days. But its offices in Mexico City were damaged by last year's earthquake, forcing the already overstretched and underfunded agency to suspend processing of open asylum claims for months.
During that period of legal limbo, asylum seekers cannot work, attend school or fully access Mexico's public health system. President-elect Andrés Manuel López Obrador, who takes office on Dec. 1, says he will offer Central American migrants temporary working visas while their claims are processed.
Mexico City, which in 2017 declared itself to be a sanctuary city, nonetheless put thousands of caravan members up in a stadium staffed by medical teams and humanitarian groups.
Militarizing the US-Mexico border
The first Central Americans from the caravan are now arriving at the U.S.-Mexico border, where they face a far less warm reception.
U.S. law prohibits the use of the armed forces to enforce domestic laws without specific congressional authorization. That means the troops can only support border agents in deterring migrants.
But Trump's decision still has symbolic power. This is the first time in over a century that military troops have been summoned to defend the U.S.-Mexico border.
The last deployment occurred during the Mexican Revolution.
On March 9, 1916, a small band of revolutionaries led by Francisco "Pancho" Villa invaded Columbus, New Mexico.
After Mexican revolutionary Pancho Villa attacked Columbus, New Mexico, President Woodrow Wilson sent troops to the border – and into Mexican territory. United States Air Force
Officially, the group assaulted the border city in retaliation for then-President Woodrow Wilson's support of Venustiano Carranza, Villa's political rival. Villa also had a personal vendetta against Sam Ravel, a local man who had swindled money from him.
President Wilson responded by summoning General John J. Pershing, who assembled a force of 6,000 U.S. troops to chase Villa deep inside Mexico's northern territory. Pershing's "punitive expedition" returned in early 1917 after failing to capture the revolutionary leader.
No relief at the border
Central Americans who reach the militarized United States border can still apply for asylum there, despite President Trump's recent executive order limiting where they may do so. But they face stiff odds.
After an evaluation process that can take months or years, the majority of Central American asylum claims filed in the United States – 75 percent – are denied. Caravan members rejected will be sent back to the same perilous place they fled last month.
With 60% of its population living in poverty, Honduras is the poorest country in Latin America. It also has the world's second-highest homicide rate – 43.6 murders per 100,000 people – trailing only El Salvador.
The U.S. contributed to the instability that created these hardships.
Honduras has been in turmoil since 2009, when the military overthrew leftist President Manuel Zelaya. Rather than join the United Nations and European Union in demanding Zelaya's reinstatement, then-Secretary of State Hillary Clinton called for new elections, effectively endorsing a coup.
The country entered a prolonged political crisis. Honduras's November 2017 presidential election was contested, with the U.S.-backed President Juan Orlando Hernández accused of rigging the vote. Seventeen opposition protesters were killed in the unrest that followed.
The Central American caravan that started in Honduras seeks in the U.S. a life free of such violence. Its steady progress toward the border shows that even kidnappings, Trump's threats and soldiers cannot deter them.
(The writer Luis Goomez Romero is Senior Lecturer in Human Rights, Constitutional Law and Legal Theory, at the University of Wollongong).