At least a dozen people were killed after the two countries exchanged fire after simmering tensions over a border dispute boiled over on Thursday.

The two sides have reaffirmed their commitment to the July 28 ceasefire and agreed to allow ASEAN observers to monitor the situation.

The Pentagon is shifting $200 million from the Army, Navy and Air Force to pay for a partial border wall at a military test range.

The federal government on Wednesday switched ownership of hundreds of acres of land in Arizona to the U.S. Navy, and it was designated as the future site of a special militarized area for U.S ...

The Trump administration instructed border officials to offer migrant teenagers the option of voluntarily returning to their home countries, upending longstanding U.S. policy, two officials told ...

The Thai and Cambodian militaries today exchanged heavy fire along their disputed border, killing at least 11 Thai citizens, in a significant escalation of an ongoing border dispute. The fighting ...

U.S. troops are sharing command stations and vehicles with civilian immigration authorities at the southern U.S. border under an emergency declaration from President Donald Trump.

Formal charges have been filed against a man accused of puncturing a U.S. Customs and Border Protection vehicle during a raid at a Sacramento-area Home Depot.

U.S. troop deployments at the border have tripled to 7,600 and include every branch of the military — even as the number of attempted crossings plummet.

Thailand Says 12 Killed in Border Clashes With Cambodia Both nations accused the other of firing first in their deadliest fighting in more than a decade. Thai authorities said the clashes had ...

The militaries of Thailand and Cambodia exchanged heavy fire on their disputed border, killing several Thai civilians and injuring others in a significant escalation of long-running territorial ...

What Is Driving the Thai-Cambodia Border Clashes Two powerful families, ancient temples and a leaked phone call all factor into the clash that has killed 15 civilians and displaced over 100,000 By ...