America’s withdrawal from Europe and the Middle East, which are both capable of maintaining their own security, has been a long time coming.

As U.S. allies fear President Trump may begin to cut age-old ties, South Korea reconsiders becoming a nuclear power.

As a “family of systems,” NGAD is expected to include a manned sixth-generation stealth fighter and a mass of Collaborative ...

Analysts agree that Russia’s losses in the war have been far higher—but the Ukrainian military is unable to replace its casualties at nearly the same rate.

By creating a new state of matter, Microsoft’s engineers have ensured their quantum computer is truly one-of-a-kind.

Overall, the Russian military enjoys a better position today. The Kremlin has the men, munitions, and political power to take on a greater number of casualties.

The Soviet Mi-24 was a testament to the Soviet preference for brute force and power over finesse or whiz-bang technological wizardry.

All this cannot be excused by different, harsher American rhetoric or “locker room talk.” If Washington had wanted to, it could have thoughtfully argued that it needs to reduce its commitment to ...

The FV101 Scorpion was designed to be an armored fighting vehicle that could be rapidly airlifted to trouble spots.

For more than four decades, the M1 Abrams family of tanks has remained a cornerstone of the Army’s armored corps.

Two experts discuss the future of U.S.-Russia negotiations over Ukraine, Europe’s role, and the broader global security stakes.

And yet it is anything but guaranteed how party chairman Friedrich Merz can govern a country in which the far-right Alternative for Germany comes second, polarization hits record levels, and ...