A contingent of five Chinese warships is set to sail alongside U.S. and allied vessels when the world's biggest maritime naval exercises kick off Thursday -- despite rising tensions and occasional standoffs between Chinese and U.S. forces in the increasingly sharp struggle for dominance in the South China Sea.
Defense Secretary Ashton Carter personally condemned Tuesday's brutal terrorist attack in Istanbul, vowing to provide the Pentagon's resources to support Turkey's ongoing counterterrorism efforts against Islamic State.
After a first attempt to train rebel fighters to take on Islamic State militants and the army of Syrian President Bashar Assad ended in an ignominious, expensive failure, the Obama administration is off to another slow start with a revamped train-and-equip program that hopes to develop a class of Sunni Arab battlefield leaders that has produced fewer than 100 graduates since March.
The opportunity to flush out the Islamic State from its self-proclaimed Iraqi capital of Mosul by the the end of the year could be slipping out of reach of American-backed Iraqi troops and local militias, despite the recapture of the critical city of Fallujah.
Defense Secretary Ashton Carter and British Defense Minister Michael Fallon discussed the potential national security fallout from the United Kingdom's vote to separate from the European Union, hours after the polls closed in the nonbinding referendum.
For over 70 years, the image of six Marines raising the U.S. flag on Mount Suribachi, high above the beaches and jungles of Iwo Jima, stood an icon to generations of Americans to the struggle, sacrifice and ultimate victory over Japan in World War II.
North Korea's ballistic missile tests this week were not the complete failure Pentagon officials initially believed, with one missile traveling 200 miles before crashing into the Sea of Japan, reigniting concerns Pyongyang is inching closer to possessing a long-range nuclear weapon.
Rifts have emerged between U.S. military leaders and the Obama White House on Washington's future role in Libya, with the generals questioning the White House's argument that the recent success against Islamic State shows Libya can go it alone in the fight against terrorism, without direct U.S. assistance.
A highly-anticipated ruling over Philippine territorial claims in the South China Sea could ratchet up tensions between Washington and Beijing ahead of a key military meeting between the two countries set for next month.
The Taliban are reportedly exploiting the pervasive culture of sexual child abuse by senior and mid-level Afghan military and police commanders to launch deadly insider attacks against local forces and their U.S. and NATO advisers, says one senior defense lawmaker.
The White House and Pentagon are re-evaluating the U.S. combat mission in Afghanistan, opening the door to keeping thousands of American troops in the country beyond President Obama's expressed timeline to draw down the mission.
More than a year since the Obama administration officially ended American combat operations in Afghanistan, the White House's newly minted battle plan for the country effectively restarts the combat mission for the 9,800 U.S. service members still in the country.
Even as U.S., Iraqi and Kurdish forces make significant gains against the Islamic State in Iraq and Syria, rising friction between Turkey and America's key regional allies threatens to scuttle the hopes of coalition forces to drive the terrorist group from the region.
Afghanistan's ambassador to the U.S. condemned Sunday's terrorist attack in Orlando, saying the time had come for unity and solidarity in the fight against terrorism.
Omar Mateen, the 29-year-old man responsible for the worst mass shooting in U.S. history, was reportedly on the FBI's radar as a known Islamic State sympathizer, though federal authorities remain unclear about the extent of his ties to the terrorist group.
Libyan forces on Thursday were the verge of driving Islamic State fighters out of their main outpost in the country, but the surprising success of the campaign against Sirte has not eased doubts at the Pentagon that the fledgling government in Tripoli and the Libyan army are cohesive enough to begin new U.S.-led military training and advising operations.
As losses continue to mount for Islamic State fighters along multiple fronts in Iraq and Syria, the terrorist group is facing the most serious threat to its Middle East strongholds since the beginning of the U.S.-led coalition campaign.
As Washington and Beijing spar in a dangerous game of one-upmanship to determine who will control the strategically critical waterways of the South China Sea, some defense observers and regional analysts worry that the U.S. effort will prove an exercise in futility in the long term against the full weight of China's growing military and economic prowess.
Defense Secretary Ashton Carter is growing impatient with the pace of U.S.-backed forces in Iraq and Syria in their efforts to retake Islamic State's strongholds in Mosul and Raqqa, urging American and coalition to intensify operations in both countries, U.S. military officials said Monday.