The National Security Act also created the United States Air Force, also under the purview of the secretary of defense. The Department of Defense would gain its current name when the National ...

Pete Hegseth, a former Fox News host, has been confirmed as the next United States secretary of defense, receiving the keys to the nation's largest federal agency.

Pete Hegseth may reinstate the aggressive "shark attack" practice used by drill sergeants to train U.S. Army recruits, which was largely ended in 2020.

The secretary is responsible for making sure those people are able to do their jobs – which, collectively, is to defend the United States, the American people and U.S. interests.

WASHINGTON and LONDON -- U.S. Defense Secretary Lloyd Austin arrived in Kyiv Monday morning for an unannounced visit to Ukraine, his second to the country since Russia invaded in February 2022.

Secretary of Defense Robert Gates said that Libya did not pose a threat to the United States before the U.S. began its military campaign against the North African country. Secretary of State ...