TOPSHOT - Migrants from poor Central American countries -mostly Hondurans- moving towards the United States in hopes of a better life, walk along the road between Zapopan and Tequila in the Mexican state of Jalisco, on their trek north, on November 13, 2018. - Defense Secretary Jim Mattis said Tuesday he will visit the US-Mexico border, where thousands of active-duty soldiers have been deployed to help border police prepare for the arrival of a "caravan" of migrants. (Photo by ULISES RUIZ / AFP)