Secretary of War Pete Hegseth established an ambitious set of goals when he took the oath to lead the department in January 2025, aggressively tackling key priorities based on President Donald J. Trump's "peace through strength" agenda. Here's a look at major changes the department has unleashed in less than a year.

Year in Photos focuses in on the people and activities of the War Department around the world while highlighting the extraordinary work of military photographers who capture it all.

The boneyard at Davis-Monthan Air Force Base, Ariz., has powered America's air dominance for decades. See how specialists restore, preserve and reactivate aircraft, keeping warfighters in flight.

Dive in and explore the Navy — from its traditions to leadership and structure, to the ships, submarines, aircraft and personnel that deliver a global reach. See how America projects power at sea.

Composed of an active-duty and two reserve components, learn about the Air Force's structure and more key facts.

The triad, along with assigned forces, provide 24/7 deterrence to prevent catastrophic actions from our adversaries and they stand ready, if necessary, to deliver a decisive response, anywhere, anytime.

Thousands of American service personnel are missing from previous conflicts and the Defense POW/MIA Agency remains relentless in its mission to provide the fullest possible accounting to their families and the nation, until they’re home.

The department helped make another "Mission: Impossible" possible. Military expertise, feedback and equipment provided authenticity to make the magic of Hollywood feel real.

Meet Boston's only undefeated team: the crew aboard Old Ironsides! Step aboard the oldest and toughest warship in all seven seas, which doubles as a living — and floating — museum.

Service members train and prepare year-round so when disasters strike, troops are ready to help those in harm's way. Learn how you can prepare, too.