Rugged mountain ranges in southeastern Arizona halted the march of a steel border wall during the first Trump presidency. Wildlife advocates say it shows the importance of animal travel routes.

THIS HAS BEEN THE BUSIEST SECTOR AREA IN THE WHOLE NATION. BORDER PATROL CAN BE SEEN EVERYWHERE, AND SO CAN THE NATIONAL GUARD. BUT THERE ARE STILL SPOTS WHERE THERE’S NOTHING TO SEPARATE THE U ...

CIUDAD JUÁREZ, Mexico— In this border city, large groups of migrants marching toward the U.S. have all but halted. Migrant encampments are disappearing, and few people are trying to sneak ...

You wouldn’t know it from the lack of coverage, but President Trump has already accomplished one of his top priorities—controlling the U.S. border with Mexico. Now if Mr. Trump wants a more ...

The Marine Corps has identified the two U.S. service members killed in a vehicle crash earlier this week in New Mexico along the southern border. Lance Cpl. Albert Aguilera, 22, of Riverside, Calif.

At the heart of immigration, New Mexico residents confront the human toll and policy failures shaping life along the U.S.-Mexico line. At the heart of immigration, New Mexico residents confront ...

They were deployed as part of the Joint Task Force Southern Border operation. A third Marine remains in critical condition. “The loss of Lance Cpl. Aguilera and Lance Cpl. Gamino is deeply felt ...

A Texas man was sentenced to four months in custody for smuggling six rare baby spider monkeys over the Mexican border and attempting to sell them over Facebook, officials said. Sarmad Ghaled ...

Within hours of taking office, President Donald Trump declared an emergency on the U.S.-Mexico border, giving him authority to unilaterally spend billions on immigration enforcement and wall ...

Tom Homan spoke with "This Week" co-anchor Jonathan Karl. Trump White House border czar Tom Homan stood by the administration's position on the return to the U.S. of Kilmar Abrego Garcia ...

President Donald Trump’s border czar said a Maryland man wrongly deported to El Salvador is “exactly where he should be”—despite a Supreme Court ruling demanding his return. “I think we ...

In an age where the data of an entire life can be held in the palm of your hand, a fundamental question has emerged about rights to digital privacy when crossing international borders: Can U.S ...