North Korean Organization and Guidance Department Director Choe Ryong Hae, often described as Kim Jong Un's second-in-command, was included in the new U.S. sanctions.
Iranian President Hassan Rouhani said "you will not be able to survive the debris of drugs, refugees and bombs and assassination" if U.S. sanctions hit.
As the U.S. threatened to end the INF treaty, Russia's top diplomat said the White House was "preparing the grounds to destroy" the New START as well.
Experts say North Korean missile sites covered by recent reports have been long known to U.S. intelligence and that Washington and Pyongyang were still talking.
Russian lawmakers think their nuclear doctrine should include "taking a decision to retaliate in case of enemy use of hypersonic and other strategic conventional weapons."
In response to mounting pressure to punish ally Saudi Arabia, President Donald Trump has instead accused the "terrorist nation" of Iran for unrelated acts.
Everyone is welcome—except if you're South Korean, Japanese or Israeli.
A recent South Korea court ruling has stirred anger in Japan just as the U.S. may need them both the most in order to advance peace talks with North Korea.
The Korean State News Agency did not say what kind of weapon was tested, but noted Kim Jong Un was "so excited."
President Donald Trump also called The New York Times article "inaccurate" and "Fake News."
Amid separate conflicts with Russia and China, the U.S. has attempted to force the two countries to adhere to sanctions on North Korea and enlist their support in achieving peace.
The North Korean leader wants more assurances from the U.S.
The "people's food basket has shrunk, except for the profiteers of sanctions," said one civil servant living in Tehran.
Israeli Prime Minister Benjamin Netanyahu called Saudi Arabia "very important for the stability of the world and the region."
Russian Colonel General Vladimir Shamanov is the latest in Moscow to warn of a repeat to the Cuban Missile Crisis.
South Korean Unification Minister Cho Myoung-gyon said "it is possible at this moment" to make peace with Pyongyang.
During the excavation, the discovery of war remains served as a reminder of the bloodshed that killed millions of Koreans in the 1950s.
An emergency response team has reportedly been activated to deal with an unspecified situation at a nuclear weapons plant in Texas.
"We will find ourselves at ground zero," Russian Senator Alexei Pushkov warned.
Russia warned that a U.S. pullout from the 1987 Intermediate-Range Nuclear Forces treaty "can make the world more dangerous."
The U.S. and Russia accused each other of violating the 1987 Intermediate-range Nuclear Forces treaty—and John Bolton wanted out.
Russian Foreign Minister Sergey Lavrov said the U.S. and the Soviet Union had an understanding that "nobody can win a nuclear war and, for that reason, it cannot happen."
North Korea has long been critical of South Korea's dependence on the U.S. despite a historic warming of ties between Cold War-era foes.
The deputy commander of the Iran's elite Revolutionary Guards said that Hezbollah alone was powerful enough to defeat Israel.
Prior to this year, the heads of the two Koreas only met twice, the last time in 2007. What followed was a decade of spiraling tensions and even outbreaks of deadly violence.
India is defying U.S. sanctions by buying Russia's S-400 surface-to-air missile system and is increasing its imports of Iranian oil.