US Defense Secretary Jim Mattis was not caught off guard by President Donald Trump's announcement that he was suspending military exercises with South Korea, a Pentagon spokeswoman said on Tuesday, adding he was consulted ahead of time.

President Donald Trump has ordered the Pentagon to prepare options for reducing the number of US troops in South Korea, the New York Times reported on Thursday, citing several people briefed on the deliberations.

The US Department of Defence has identified a soldier who was killed in combat in Afghanistan's eastern Kapisa province on Monday.

The United States said on Saturday it overwhelmed and evaded Syrian air defences overnight to strike every target at the heart of Syria's chemical weapons program, in a multi-pronged attack from the air and sea ...

German Interior Minister Horst Seehofer said on Saturday he would press for ‘reasonable results’ in the next round of pay talks with more than two million public sector workers ...

His Highness the Emir Sheikh Tamim bin Hamad al-Thani and US Defence Secretary James Mattis on Monday discussed strategic, defence, military and security co-operation between the two countries and means of developing and expanding them.

A group of active and retired US troops gathered in freezing temperatures outside the Pentagon on Monday to bring attention to sexual assault and harassment in the military.

The Pentagon has yet to decide how many more US troops to send to Afghanistan as it is still drawing up a plan, Defense Secretary James Mattis said on Tuesday, after President Donald Trump committed the United States to an open-ended war there.

The Pentagon will not make the remaining military reimbursements to Pakistan for fiscal year 2016 after US Defense Secretary Jim Mattis told Congress Islamabad had not taken sufficient action against the Haqqani network.

US forces have carried out a ground raid on an Al-Qaeda compound in Yemen, killing seven militants, the Pentagon said late on Monday.

The Pentagon on Friday denied that it had targeted a mosque in the Western Syrian province of Aleppo, saying that it had carried out a strike against an al Qaeda meeting place and believed that it had killed dozens of militants.

Four Americans were killed Saturday in a huge explosion inside the largest US military base in Afghanistan, Secretary of Defense Ash Carter said.