Center for Defense Concepts and Technology

US Army drones at the Al Asad Airbase in the western Iraqi province of Anbar, January 2020. (Ayman Henna/AFP via Getty Images)

A view of the Pentagon Memorial honoring the 184 lives lost during the Sept. 11, 2001 terrorist attacks.

The authors argue that more funding should be driven by combatant commanders such as U.S. Central Command's Gen. Kenneth McKenzie, seen here boarding a UH-60 Black Hawk in Saudi Arabia in 2020.

As the U.S. Navy grapples with losing many of its cruisers in the coming years, it's looking to kick off a major effort to move forward on its next-generation of large surface combatant.

A soldier in Tampa, Florida, assesses the Army's One World Terrain software, which will be used to create real-time, realistic simulated terrain for soldiers to fight on

The Virginia-class attack submarine USS North Dakota.