Russia has deployed "a group of operatives" into Ukraine to foment a pretext for another invasion of that country, Pentagon Press Secretary John F. Kirby said.
The Defense Department is working closely with the Department of Health and Human Services and the State Department to provide support in dealing with the coronavirus outbreak.
The planet's changing climate has a significant effect on Defense Department missions, plans and installations. DOD is elevating climate change as a national security priority, integrating climate considerations into policies, strategies and partner engagements.
As the 28th secretary of defense, Lloyd J. Austin III is the principal assistant to the president in all matters relating to the Department of Defense and also serves on the National Security Council.
Army Spc. 5th Class Clarence Sasser was drafted into the Army as a medic. He was sent to Vietnam at the height of the war and did his job so fearlessly during battle that he earned the Medal of Honor.
Operation Desert Storm began 31 years ago — on Jan. 16, 1991 — five months after Iraqi forces invaded and annexed Kuwait.
Mike Sullivan was a Marine Corps infantryman during the Vietnam War who later covered the Persian Gulf War as a journalist.
Find out how much you know about Operation Desert Storm, the Gulf War's combat phase.
The Military Health System supports the National Defense Strategy by providing a medically ready force, a ready medical force and a medical benefit in keeping with the service and sacrifice of more than 9.6 million active-duty personnel, military retirees and their families.
Take a glimpse into the daily lives of the Defense Department and its people through the eyes of military photographers during operations, training activities, humanitarian missions and other major events of 2021.
The Tomb of the Unknown Soldier, America's final resting place for those whose remains have not been found or identified, inspires reflection on service, valor, sacrifice and mourning.
They may not have actual boots on the ground, but you'll find U.S. military working dogs serving wherever American troops do. They are as lovable as they are loyal, but make no mistake – these are highly skilled warriors, trained by the best to serve alongside them.
Take a look behind the lens at the missions and accomplishments of the men and women who serve in the U.S. armed forces.
The Department of Defense provides the military forces needed to deter war and ensure our nation's security.