Prosecutors revealed that Ryan Routh, the alleged would-be assassin of President Trump, tried to obtain military-grade arms from a contact in Ukraine.

The weapons from a toolkit unearthed in Texas may be the earliest ever found in North America. Archaeologists in Texas have ...

Trump has imposed new sanctions on Iran as part of his “maximum pressure” campaign targeting the country. He has again suggested military action against Iran remained a possibility, while emphasizing ...

Anglo-American researchers have completed tests on a propulsion system that should power a cutting-edge hypersonic missile ...

Advances in drone technology and artificial intelligence seem destined to transform defense planning and budgeting. But we ...

Experts warn that the timing of the potential drawdown could alarm NATO allies and embolden Russian President Vladimir Putin.

The U.S. and Iran will soon begin nuclear negotiations, but there already seems to be disagreement between President Trump and Tehran over the nature of the talks. Here's what to know.

The “profound change of American geopolitics” could be the first step toward massive nuclear weapons proliferation.

Former Russian President Dmitry Medvedev said on Tuesday that more countries will acquire nuclear weapons because the West ...

The president said talks would happen “at almost the highest level” but declined to say where the negotiations would take ...

Iran insisted that any negotiations, due to take place in Oman, would be “indirect,” conducted through mediators.

Taken together, they signal an abrupt reversal from efforts by the Biden administration to stem the flood of unregulated ...