Finland and Sweden have become observer members of NATO, as alliance members sign off accession protocols to enable the membership of the two Nordic nations.

A sprawling complex under arid mountains near the edge of Kirtland AFB here has a renewed life testing cutting-edge technology, more than 70 years after it was built in secret to protect the U.S. president in the event of a post-World War II disaster.

A first-generation uncrewed combat aircraft will be fielded by the USAF by the end of the decade under a revamped acquisition strategy.

Germany and Sweden have joined France to study the future development of a new-generation European airlifter that could replace types such as the Lockheed C-130 Hercules and CASA CN235.

Tensions over the flight controls are holding up progress toward the development of FCAS’ demonstrator program.

The F-35 is beginning to make its mark on the UK’s Royal Air Force and Royal Navy who operate the aircraft.

More data is emerging to support the U.S. Air Force’s creation of the F-35 Adaptive Engine Replacement program.

The Pentagon will send two advanced missile defense systems to Ukraine in its latest tranche of $820 million in aid for Kyiv.