Catholic aid groups are among those preparing for migrants fleeing violence in Central America—and who may face a U.S. border slammed shut to asylum seekers.

As a group from Central America heads to the border between the U.S. and Mexico, the Trump administration is said to be getting ready to send troops to meet them and Catholic groups are asking that the migrants be treated humanely.

Members of St. Francis of Assisi Parish in this southern Mexican city rose early Oct. 24 to feed but a fraction of the Central American migrants traveling in a caravan, which is trying to traverse Mexico and reach the United States border.

The group, many with children and even pushing toddlers in strollers, departed Mapastepec at dawn with more than 1,000 miles still to go before they reach the U.S. border.

Vatican official says people must not succumb to fear mongering and realize that the challenge of migration today is solvable—but only if there is political will.