The border wall system is being built in strategic locations across the Southwest border. To stay up-to-date on current progress, visit cbp.gov/borderwallsystem. Watch construction of new segments and use the interactive map to zoom in on current projects. Acting Commissioner Mark Morgan: President Trump is delivering on his promise to build a border wall system to secure the border. Border security is national security and a strong border wall system is critical to keeping our Nation safe. | U.