Tom Bowman

The U.S. has a new mission in Syria: keeping the country's oil fields away from Syrian and Russian forces.

The U.S. and the Taliban signed an agreement that calls for the full withdrawal of American troops from Afghanistan within 14 months.

Contrary to earlier reports of no injuries, 11 U.S. troops were injured in Iranian strikes on Iraqi bases.

Following the December attack on a naval air station, the Pentagon has suspended training of all Saudi military students, as investigators conduct a review of the more than 800 students in the U.S.

Iran launched ballistic missiles against U.S. military and coalition forces in Iraq, targeting at least two military bases. Last week Iran's top general was killed in a U.S. drone strike.

Iran has launched more than a dozen missiles against U.S. and coalition forces in Iraq. Initial damage assessments are being conducted.

Defense Secretary Mark Esper says U.S. troops will be repositioned in Iraq, but will not leave the country. His comments come after a letter from the U.S. military suggested a withdrawal.

Following the U.S. airstrike in Iraq that killed the top Iranian general, the U.S.-led military coalition fighting ISIS said it's temporarily stopping that fight to brace for retaliation from Iran.

NPR's Audie Cornish wraps the latest Iran developments with a roundtable of NPR correspondents covering the Pentagon, the White House and the State Department.

The U.S. has killed Iran's top military leader in a strike on Baghdad airport. The Pentagon says the general was actively developing plans to attack American diplomats and service members in Iraq.

Airstrikes by U.S. forces on Iraq and Syria targeted an Iran-backed militia group. Sunday's strikes followed attacks on U.S. interests and the killing of an American civilian contractor in Iraq.

A round-up of the biggest stories in national security this year, including Syria, North Korea and Afghanistan, and a look forward to 2020.

The Pentagon released the latest soldier death from Afghanistan and it's another Green Beret. Sgt. 1st Class Michael James Goble was the 20th solider killed in the country this year by hostile fire.

The U.S. has a long history of military training for visiting Saudis. The deadly shooting at a Pensacola naval base by a Saudi national tests that relationship.

President Trump made a surprise visit to troops in Afghanistan on Thanksgiving Day, announcing that he believes the Taliban wants a cease-fire and that he is restarting peace talks with the group.

The Navy has decided to allow three SEALs implicated in a war crimes case stay in the commando unit. Meanwhile, the ousted secretary of the Navy sharply criticized President Trump in an op-ed.

The Navy is letting three Navy SEALs accused of wrongdoing keep their coveted Trident pins. The move comes after President Trump demanded that a convicted SEAL, Eddie Gallagher retire with his pin.

Defense Secretary Mark Esper confirmed on Monday that President Trump ordered the Pentagon not to remove a Navy SEAL at the center of a high profile war crimes case.

Richard V. Spencer has been terminated as secretary of the Navy, after his handling of the case of a Navy SEAL accused of war crimes came under rebuke by the defense secretary.

Navy Secretary Richard V. Spencer has been forced out by the Secretary of Defense Mark Esper.