While the U.S. has taken part in previous iterations of the military exercise, this year's U.S. footprint was smaller as allied nations are pressed by the Trump administration to put more into European defense.

Business Insider observed US, Polish, and Romanian forces learning to use the Merops system, which has been combat-proven in Ukraine.

The U.S. NATO envoy supports a German general taking command of all allied forces, a job that has been held by an American officer.

Some of America's closest European allies say they're already in a gray zone between peace and war with Russia.

Military capability of Western alliance remains 'formidable' despite questions around US commitment to untested 'mutual assistance' agreement

All parts of the UAS interceptors can be packed and shuttled around easily in light tactical vehicles or in the back of a truck.

NATO fighter jets were scrambled and ground-based air defense systems put on high alert in Poland and Romania during an overnight Russian attack on Ukraine.

The drone incursions and the instability on NATO’s eastern flank stem from Russia’s war in Ukraine, now approaching the end of its fourth year. The conflict has become a crucible for drone development, transforming the battlefield into a testing zone for new technology which now has applications elsewhere in Europe.

This special report focuses on a 28-point peace proposal for the Russia-Ukraine war, attributed to Donald Trump. The plan, as detailed in the bulletin, includes a provision for The North Atlantic Treaty Organization (NATO) to agree not to station troops in Ukraine.

Footage from the North Atlantic Treaty Organization shows a decommissioned frigate sinking after a NATO submarine hit it with a torpedo during an exercise. Video: NATO