This would be North Korea's seventh nuclear test.
President Donald Trump needs Congressional authorization to order military action against a foreign country, but he probably doesn't care.
"The country has steadfastly improved its nuclear and missiles capability," Defense Minister Itsunori Odonera said.
Trump has said military options are on the table if Pyongyang doesn't end its nuclear weapons program.
The monster-themed ballistic missile is part of a three-tier attack plan designed to inflict "unbearable cost" to North Korea's military and government.
Analysts say North Korea may have to move on to other tunnel testing sites or build new ones.
North Korea, known for its reclusive, militant policies, is attacking President Donald Trump for isolating himself from the international community.
Tokuko Kimura was 10 years old when she became victim to the second of the only two nuclear attacks in history and 72 years later she's fighting to ensure it never happens again.
"The sanctions the White House has imposed are historical."
Pyongyang's deputy ambassador spoke to the U.N. General Assembly committee for disarmament, but skipped the most inflammatory parts of his statement.
The powerful hydrogen bomb test was significantly more powerful than all of North Korea's previous nuclear tests combined.
The president says Iran is has "multiple violations of the agreement," but those around him don't seem to agree.
Article 29 of the Iran nuclear deal states that no country should discourage trade with Iran, something President Donald Trump has done for some time.
Officials explained America's nonproliferation treaty obligations.
The Ratnik-3 is a future infantry combat suit with a built-in exoskeleton, state-of-the-art reconnaissance and weaponry and, now, a nuclear-resistant watch.
North Korea and the U.S. have been enemies for decades, but tensions have increased significantly over the past several months.
North Korea claims it foiled a joint CIA and South Korean plot on Kim Jong Un's life and blasted Washington's global war on terror.
The international community has repeatedly condemned nuclear weapons as illegal, but nuclear-armed nations aren't relenting.
North Korea conducted a series of recent missile tests and its sixth nuclear test in early September, which has put the U.S. on high alert.
Representative Ted Lieu is one of the most vocal critics of President Donald Trump's approach to North Korea.
The sale of $113 million worth of advanced air-to-air missiles to Japan needs to be approved by Congress.
North Korea has a long history of challenging U.S. policy in the Middle East by supporting Arab states opposed to Israel.
"We feel strongly we should be able to fly, sail anywhere international rules allow," the U.S. Pacific Air Forces commander said.
Trump's call for force makes clear "the diplomatic offer on the table is cooling," says R.C. Hammond.