A new internal memo wants to help Missile Defense Agency personnel "address false assumptions" stemming from 'A House of Dynamite.'

Japan's Defense Ministry said the country faces "the most severe and complex security environment" since World War II.

Democrats are raising alarms over the National Nuclear Security Administration’s decision to furlough nearly 80% of its federal staff.

Russian President Vladimir Putin said the country has tested a new, nuclear-capable missile and is preparing to deploy it.

Trump told reporters on Friday he would be open to a last-minute meeting with Kim Jong Un, citing their "very good relationship."

Once again, nuclear power seemed hopeless, at least in the U.S. Yet over the same period, China built 13 similar reactors, with 33 more underway. And Beijing’s nuclear ambitions are global. China is quickly becoming the global leader in nuclear power,