The demilitarised zone (DMZ) is a heavily mined, four-km-wide strip of land lined with barbed wire running across the Korean peninsula, with soldiers on both sides in a continual eyeball-to-eyeball standoff.
Perry said that while the situation with North Korea was "unfortunate", he would not support a strike on North Korea since the Hermit Kingdom has a secretive, spread-out nuclear arsenal that the U.S. couldn't hope to knock out before it got a shot off.
Late Monday, Pence reiterated in a joint statement alongside South Korean Acting President Hwang Kyo-ahn that "all options are on the table" and said any use of nuclear weapons by Pyongyang would be met with "an overwhelming and effective response".
He said the United States would stand by its "iron-clad alliance" with South Korea and was seeking peace through strength.
Stewart said he has confidence in President Donald Trump to handle North Korea and praised diplomatic efforts by Vice President Mike Pence, now in the region, and Secretary of State Rex Tillerson.
And Trump is now planning to send two more aircraft carriers, the CVN-76 Ronald Reagan, and the CVN-68 Nimitz to the area.
"We appreciate the challenging times in which the people of Japan live with increasing provocations from across the Sea of Japan", Pence said after arriving from Seoul for talks with Abe. "But we are committed to defending our people and our allies should it be necessary". North Korea has indicated that it will continue to test missiles and will work to develop a warhead that can fit on an intercontinental missile and hit other countries that are far away, such as the United States. "We should be careful about "paying" China - in terms of standing down on economic issues - for doing what is in their interest already". He said the American commitment to South Korea is "iron-clad and immutable".
North Korea's United Nations deputy representative Kim In Ryong on Monday unleashed at a UN press conference a torrent of threats, war scenarios and rhetoric aimed at the United States.
What appeared to be new long-range ballistic missiles were on display in the parade. If not, we will solve the problem without them! "We will see what happens!"
"The world witnessed the strength and resolve of our new President [Donald Trump] in actions taken in Syria and Afghanistan", Pence said.
For decades, U.S. officials have made clear to their Chinese counterparts that the United States won't barter economic or other foreign policy issues in exchange for support on the North Korean issue - sending the signal that the USA position on the issue was in the interests of global stability.
Thornton said any new North Korean nuclear test "would draw a pretty significant global response".
KIM JI-EUN, South Korean Resident (through interpreter): As Trump became president, the policies seem likely to become more oppressive, and it worries me that war might actually break out.
A senior White House official insisted Trump was not offering a "specific quid pro quo" to the Chinese, but rather signaling to China that cooperation on North Korea would help create a more beneficial US-China relationship.
"[North Korea] is on a path to achieving nuclear weapons capability and we believe Kim Jong-un has a clear ambition to develop an intercontinental ballistic missile capable of carrying a nuclear payload as far as the USA", she told AM.
"I don't think Canada, no matter what we did or could do, would change the situation at all, " he said.
"We had good intelligence before the launch and good intelligence after the launch", the adviser told reporters on condition of anonymity. But according to USA officials, that test was labeled a failure because the missile began to spin out of control and crashed into the water.
China has spoken out against the North's weapons tests and has supported United Nations sanctions.
But repeated calls to the main office rang unanswered during office hours on. "And that's a disgusting outcome, obviously, for everyone, including the innocent North Koreans who are just held as prisoners of his regime", Stewart said.
Pence told reporters that Trump was hopeful China would use its "extraordinary levers" to pressure the North to abandon its weapons program, a day after the North's failed missile test launch. North and South Korea are technically still at war because their 1950-1953 conflict ended in a truce, not a treaty.