North Korea says it cannot stand idly by as the "gangster-like U.S. imperialists" conduct war games with South Korea.
"Just because you don't like the decisions he makes, doesn't make him irrational."
President Donald Trump vowed to answer North Korea's threats with "fire and fury," fueling speculation that the U.S. wants to overthrow Kim Jong Un.
The Chinese navy closes off 15,000 square miles in the East China Sea to perform live-fire drills as the U.S.-North Korea rivalry escalates.
The head of Russia's Radiation, Chemical and Biological Protection Troops says the new robots will be better equipped than people to operate in deadly environments.
After being accused by the U.K. and Australia of not doing enough on North Korea, China said it didn't start the nuclear crisis and didn't have the solution.
North Korea claims it's not scared of President Donald Trump or his "old warmonger" Secretary of Defense James Mattis.
The U.S. and Russia have taken leading, often opposing, roles in world affairs, but recent events in Syria and North Korea may invite more cooperation.
North Korea's Kim Jong Un has said nuclear weapons are key to his government's survival and the latest missile test may prove this to be true.
Experts weigh in on whether the U.S. faces a nuclear threat after North Korea successfully tests its first intercontinental ballistic missile.
As President Donald Trump tries to get South Korean President Moon Jae-in on board, North Korea warns nuclear war is closer than ever.
As China becomes frustrated with North Korea’s nuclear ambitions and U.S. political pressure, Russia’s intervention could tip the balance.
Ronald Reagan and Mikhail Gorbachev signed the Intermediate-Range Nuclear Forces Treaty in 1987. Now Republican hawks want to scrap it.
U.S. officials say new activity at North Korea's nuclear weapons test site indicates the country may be preparing a launch during top U.S.-China talks.
Ahead of a critical meeting with China, the U.S. said it would consider implementing sanctions against China if Beijing did not address North Korea.
Responding to a tweet by President Donald Trump, North Korean media said the distance between New York and North Korea was "not a long distance" to strike.
Pyongyang said the U.S. would suffer a "bitter disgrace" if it did not roll back its hostile stance toward North Korea.
In the latest commentary by state-run media, North Korea asserted its right to maintain nuclear weapons against U.S. "world domination."
North Korea's state-run media says the U.S. is risking "further disgrace" in addition to possible nuclear retribution.
Russian lawmaker Vyacheslav Alekseyevich Nikonov said nuclear weapons would be necessary in the event of a U.S. or NATO invasion of Crimea or eastern Ukraine.