President Donald Trump has appeared to suggest on social media that the U.S. resume testing nuclear weapons for the first ...

The U.S. voluntarily halted nuclear explosive testing in 1992, though it has the ability to restart tests at a site in Nevada ...

Confusion and ambiguity are dangerous in nuclear brinksmanship. President Donald Trump spread both on Wednesday when he ...

Ukraine's defense industry has grown substantially, but it's yet to reach its potential. Exports could clear the way.

President Trump explained the order by saying other, unnamed nations were testing their own nuclear weapons, even though no ...

President Donald Trump ordered the Defense Department to 'immediately' begin testing nuclear weapons for the first time in 33 years.

South Korea has proven to be a reliable and strong U.S. ally in advancing freedom, opportunity, and prosperity in eastern Asia and around the globe. The two countries can accomplish much more, and ...

Trump said changes were necessary because other countries were testing their weapons. Russia has claimed it has recently ...