TOPSHOT - Central American migrants -mostly Hondurans- moving in a caravan towards the United States in hopes of a better life, leave a shelter and head to Mexicali's downtown area in Baja California state, Mexico, on November 19, 2018. - US President Trump has sent about 5,800 troops to the border to forestall the arrival of large groups of Central American migrants traveling through Mexico and towards the US, in a move critics decry as a costly political stunt to galvanize supporters ahead of midterm elections earlier this month. (Photo by PEDRO PARDO / AFP)