Pence arrived in Tokyo on Tuesday from South Korea where he started his 10-day trip to Asia on Sunday hours after the North Korean missile test.
Pointing to the quarter-century since the United States first confronted North Korea over its attempts to build nuclear weapons, he said a period of patience had followed. But it has shown signs of changing in its stance since Trump shifted from the policy of "strategic patience" pursued by his predecessor, Barack Obama, to one of pressure.
Unlike Obama, however, Trump has made a decision to confront this threat head-on, dispatching what he called a "very powerful" armada to the Korean Peninsula as a sign of strength and a show of solidarity with the United States' allies in the region, South Korea and Japan. North Korea's vice-foreign minister told the BBC Pyongyang would continue to test missiles and would launch a pre-emptive nuclear strike if it thought the U.S. was planning an attack.
Kim said the North is ready to react to any "mode of war" from the U.S. and will respond in kind to any USA missile or nuclear strike. Beijing says the system threatens its own security by allowing the U.S.to monitor flights and other activity in northeastern China. -South Korean military exercises being staged now are the largest-ever "aggressive war drill".
U.S. Commerce Secretary Wilbur Ross and the prime minister held a meeting at the latter's office shortly before the working lunch, according to Japanese officials. "If those businessmen in power in the United States thought of intimidating us by any military or sanction threats-as the [Barack] Obama administration used to do and failed-they will soon find out such threats are useless", Sin said.
Meanwhile, China made a plea for a return to negotiations.
Chinese Foreign Ministry spokesman Lu Kang told reporters in Beijing on Monday that the Korean peninsula was "highly sensitive, complicated and high risk" and that all sides should "avoid taking provocative actions that pour oil on the fire".
China has refused to comment on whether Wu Dawei, who travelled to South Korea last week to discuss tough new sanctions, had to cancel a planned visit to Pyongyang on Friday.
U.S. Vice President Mike Pence and Japanese leaders began talks Tuesday expected to focus largely on trade with America's anchor ally in the region, though tensions with North Korea loomed large. He said the American commitment to South Korea is "iron-clad and immutable".
"The time of dictating orders by brandishing the USA military might has gone". -South Korean installation, which is just outside the 2.5-mile wide (4 kilometers) DMZ.
"China can facilitate a three-way dialogue among the top leaders of China, North Korea and the United States so we can at least try the shortcut", he added. "But dialogue for the sake of having dialogue is meaningless".
Chief Cabinet Secretary Yoshihide Suga told reporters over the weekend that Japan might push ahead with a revised, 11-nation version of the TPP despite the USA rejection of the trade accord.
Mattis credited China with trying to help get the North Korea situation "under control" with the goal of denuclearizing the Korean Peninsula.
The North has said such launches are an act of deterrence against a potential invasion by the United States or South Korea.