On Monday, Defense Secretary James Mattis and subordinate combatant commanders authorized troops heading to the border to carry live ammunition, according to the documents obtained by Newsweek
The information, contained in operational documents obtained by Newsweek, was transmitted before thousands of troops were directed to the border to meet the migrant caravan.
In addition to the extra 5,000 troops announced Monday, a Pentagon official told Newsweek that there would be an additional 7,000 on round-the-clock standby.
Trump's comments come on the heels of Saudi Arabia's confirmation that Jamal Khashoggi, 59, was dead.
Defense Department officials pushed back on assertions made Thursday by President Vladimir Putin that suggest Islamic State militants seized roughly 700 people after an attack on a Syrian refugee camp last week.
On Wednesday, 50 years after the battle, retired U.S. Marine Sergeant Major John L. Canley, 80, was recognized with the Medal of Honor for his heroics in the Vietnam War.
Pentagon officials identified the U.S. service member killed in Afghanistan on Friday amid a top general indicating significant Afghan losses during a "difficult and bloody summer."
Sam Nebesky shared a treasure trove of memories with Newsweek in the run-up to his 100th birthday on Wednesday.
American forces will remain in Syria to provide training to local forces in order to ensure stability within the region, Defense Secretary Jim Mattis told reporters.
A former U.S. Army special forces medic, who saved scores of his fellow service members and Afghan commandos during a fierce firefight in 2008 will receive the Medal of Honor.
A United Nations senior adviser accused of a long trail of sexual misconduct against younger male subordinates was fired after almost 15 months of investigation by U.N. officials.
Local officials in North Carolina predict rising rivers could lead to more flooding, only exacerbating the already difficult rescue operations taking place in parts of the state.
Command Sergeant Major Timothy A. Bolyard was the highest-ranking enlisted soldier of a unit that forms the U.S. Army's newest adviser brigade deployed to Afghanistan as a part of the Trump administration's strategy.
A member of the Afghan National Police reportedly shot dead a U.S. soldier in a "green-on-blue" attack.
Three years after the U.S. Army opened its legendary Ranger school to women, the first enlisted female soldier is scheduled to graduate on Friday.
Curtis Krueger and his wife are being held on $1 million bail each, and Newsweek sources say the command climate at the U.S. Marine Corps base has become "completely toxic."
As Senator John McCain is laid to rest, Senator Jim Inhofe—a polarizing individual for McCain surrounding the issue of torture and interrogation—is poised to take the committee position.
He was there on a counterterrorism operation against the Islamic State.
Ten U.S. military personnel were aboard the aircraft flown by pilots from the elite 160th Special Operations Aviation Regiment.
"Hate groups send their guys into the U.S. military because the U.S. military has the best weapons and training."