Ukraine's air defenses have evolved over four years to counter an ever-growing threat from missiles and drones, shofting from ...

More than 385,000 Ukrainian teenagers are enrolled in a defense course, expecting war, or threats, to go on for years. In ...

Four years of war against Ukraine means four years of learning for Russia’s armed forces. But how much have they actually learned, how much have they actually reformed, and how worried should people ...

The war in Ukraine is not only about territory. It is about the credibility of the post-Cold War order and the durability of Western commitments.

Add Yahoo as a preferred source to see more of our stories on Google. Martin Sylvest Andersen/Getty Images Denmark said it will send soldiers to Ukraine for training to learn from real-world combat.

The war in Ukraine is, at once, a past and future conflict. On the one hand, Russia’s invasion resembles World War I, with static frontlines, trenches, and vast areas of no mans ...

European Commission President Ursula von der Leyen has said Europe must be ready to use force decisively and preemptively to ...

Why did Ukraine assassinate a Russian general on the streets of Moscow? Lieutenant General Igor Kirillov and an aide were killed yesterday by a bomb planted in a scooter as they walked out of a ...

In the Kremlin’s own rhetoric, the UK is increasingly framed as one of Russia’s principal adversaries. Yet, without the ...

Denmark is planning to send some of its soldiers to Ukraine so they can learn from Ukraine's experience fighting Russia, and Russia said they would be legitimate military targets. Maj. Gen. Peter ...