HELENE COOPER

Gen. Mark Milley, the chairman of the Joint Chiefs of Staff, called the coming winter months an opportune time for the two sides to hold...

An air defense system is still not a part of the package, but that may be on the way soon.

The challenge to the 2020 election result has helped create “an extremely adverse environment,” former defense secretaries and generals said in an open letter.

The easing of coronavirus restrictions may have contributed to the increase.

The estimated deaths and injuries are stalling Russia’s progress in eastern Ukraine, military experts say, as fighting intensifies in the south.

Gen. Michael E. Langley is the first Black person to attain the highest rank in the corps, whose most senior leadership had until now consisted...

Crowds of people had surged onto the runway at the airport in Kabul during the final days of the U.S. evacuation of Afghanistan.

For Sweden and Finland, which want to join NATO, the U.S.S. Kearsarge is a promise of the protection that membership in the alliance would bring...

President Vladimir V. Putin sent in a new commander in April, but Russian troops are still facing morale and other problems, American officials say.

The transfer, a response to a request from Ukraine’s president, will mark the first time the Biden administration has helped send tanks in the five-week-old...