The world’s two largest economies did not cut a deal to avert sweeping U.S. tariffs, which came into effect after midnight.

The number of Chinese operational nuclear warheads has increased by more than 100 to over 600, the Pentagon reported.

The air and missile defense system can integrate sensors and weapons that were never designed to work together.

China’s latest artificial intelligence breakthrough has rattled U.S. security experts, with DeepSeek’s new model ...

Amid a tsunami of early shakeups in the new administration, President Donald Trump has twice this month suggested ...

The search for new suppliers for the minerals needed for everything from batteries to missiles has driven novel extraction ...

Satellite images reveal China is building a massive laser fusion facility, which can be used in nuclear weapons research as ...

Russia's exit from Syria will disrupt supplies to its forces in Africa. But as Moscow's fortunes in the resource-rich ...

Once China produced weapons-grade uranium, it assembled its first atomic bomb in as little as three to five weeks. Iran may ...