El Salvador has a population of just over 6 million people.
But since last October, almost 16, 000 Salvadorean children have arrived at the U.S. border.
The country is struggling to rein in crime and gain control over powerful gangs.
El Salvador's new president has announced a strategy to expand community police units.
Reporter Jude Joffe-Block of Fronteras Desk went out on patrol with some officers and reports back.