The Allied troops who landed in Nazi-occupied France on D-Day successfully executed the largest air, land and sea invasion in history — and they did so amid stakes that couldn't have been higher.

Imagine spending all day, every day, practicing trick shots with a shotgun, taking out 10 moving targets with a pistol in six seconds flat, or perfecting your shot toward a target the size of a period.

The Department of War is America's oldest and largest government agency, tracing its roots back to pre-Revolutionary times.

From defending America's borders and fighting drug trafficking to changes in culture and business operations to better build the nation's arsenal of freedom, President Donald J. Trump and Secretary of War Pete Hegseth are ushering in a new era characterized by peace through strength.

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.