He stared down Lockheed on the F-35 negotiations, devised a politically-neutral tanker competition and ramped up Pentagon innovation.

A Boeing KC-46 took off from its home base in Kansas on Oct. 25 and flew west toward military airspace in Utah in a mission to test a new tactic for the refueler, one that has become controversial since the plan first came to light over the summer.

Russia’s invasion of Ukraine is prompting Europe’s armed forces to rapidly relearn skills that have faded since the end of the Cold War.

The U.S. Air Force next year will start defining what its future airlift capability will be, speeding up the work alongside an accelerated timeline for a next-generation tanker.

Former Air Force acquisition chief Will Roper shares some of his memories about the former Defense Secretary, who knew science, technology and the politics of the Pentagon to tackle its toughest challenges.

The country's air force is one of the major beneficiaries of Berlin’s defense spending uptick.

The Biden administration, in its long-awaited outline of nuclear policy, has detailed its thinking behind canceling the contentious Sea-Launched Cruise Missile-Nuclear and retiring the B83-1 gravity bomb.

Despite differences between nations, space exploration should remain a place for civil collaboration.